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23023331331 = 37111326632879
BaseRepresentation
bin10101011100010011…
…000010100000000011
32012102112110102011020
4111130103002200003
5334122433100311
614324325520523
71443353041650
oct253423024003
965375412136
1023023331331
119845085660
124566573143
13222bb6a9a0
141185a42c27
158eb3bcc06
hex55c4c2803

23023331331 has 64 divisors (see below), whose sum is σ = 41246392320. Its totient is φ = 11032179840.

The previous prime is 23023331329. The next prime is 23023331369. The reversal of 23023331331 is 13313332032.

It is not a de Polignac number, because 23023331331 - 21 = 23023331329 is a prime.

It is a super-2 number, since 2×230233313312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23023331371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7995550 + ... + 7998428.

It is an arithmetic number, because the mean of its divisors is an integer number (644474880).

Almost surely, 223023331331 is an apocalyptic number.

23023331331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23023331331 is a deficient number, since it is larger than the sum of its proper divisors (18223060989).

23023331331 is a wasteful number, since it uses less digits than its factorization.

23023331331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 23023331331 its reverse (13313332032), we get a palindrome (36336663363).

The spelling of 23023331331 in words is "twenty-three billion, twenty-three million, three hundred thirty-one thousand, three hundred thirty-one".

Divisors: 1 3 7 11 13 21 33 39 77 91 143 231 273 429 1001 2663 2879 3003 7989 8637 18641 20153 29293 31669 34619 37427 55923 60459 87879 95007 103857 112281 205051 221683 242333 261989 380809 411697 615153 665049 726999 785967 1142427 1235091 2665663 2881879 7666777 7996989 8645637 23000331 53667439 84334547 99668101 161002317 253003641 299004303 590341829 697676707 1096349111 1771025487 2093030121 3289047333 7674443777 23023331331