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23023101031 = 717117192149
BaseRepresentation
bin10101011100010010…
…001010010001100111
32012102112000201020121
4111130102022101213
5334122403213111
614324320542411
71443351062350
oct253422122147
965375021217
1023023101031
119844a38627
124566481a07
13222bab9c08
1411859c2d27
158eb374871
hex55c48a467

23023101031 has 8 divisors (see below), whose sum is σ = 26313789600. Its totient is φ = 19732831008.

The previous prime is 23023101019. The next prime is 23023101067. The reversal of 23023101031 is 13010132032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23023101031 - 211 = 23023098983 is a prime.

It is a super-2 number, since 2×230231010312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23023100996 and 23023101014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23023101331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23745 + ... + 215893.

It is an arithmetic number, because the mean of its divisors is an integer number (3289223700).

Almost surely, 223023101031 is an apocalyptic number.

23023101031 is a deficient number, since it is larger than the sum of its proper divisors (3290688569).

23023101031 is a wasteful number, since it uses less digits than its factorization.

23023101031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209273.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23023101031 its reverse (13010132032), we get a palindrome (36033233063).

The spelling of 23023101031 in words is "twenty-three billion, twenty-three million, one hundred one thousand, thirty-one".

Divisors: 1 7 17117 119819 192149 1345043 3289014433 23023101031