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23313201231 = 3197172122921
BaseRepresentation
bin10101101101100100…
…110011100001001111
32020011201220022220110
4111231210303201033
5340221134414411
614413202451103
71453502640465
oct255544634117
966151808813
1023313201231
119983770161
124627663a93
132276c2c938
1411b233a835
15916a7a2a6
hex56d93384f

23313201231 has 16 divisors (see below), whose sum is σ = 31261573728. Its totient is φ = 15453580800.

The previous prime is 23313201221. The next prime is 23313201251. The reversal of 23313201231 is 13210231332.

It is not a de Polignac number, because 23313201231 - 214 = 23313184847 is a prime.

It is a super-2 number, since 2×233132012312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23313201198 and 23313201207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313201221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005651 + ... + 1028571.

It is an arithmetic number, because the mean of its divisors is an integer number (1953848358).

Almost surely, 223313201231 is an apocalyptic number.

23313201231 is a deficient number, since it is larger than the sum of its proper divisors (7948372497).

23313201231 is a wasteful number, since it uses less digits than its factorization.

23313201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24842.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23313201231 its reverse (13210231332), we get a palindrome (36523432563).

The spelling of 23313201231 in words is "twenty-three billion, three hundred thirteen million, two hundred one thousand, two hundred thirty-one".

Divisors: 1 3 197 591 1721 5163 22921 68763 339037 1017111 4515437 13546311 39447041 118341123 7771067077 23313201231