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23051331051 = 371163943837
BaseRepresentation
bin10101011101111101…
…110110010111101011
32012111111010221112220
4111131331312113223
5334202120043201
614331210005123
71444143036540
oct253575662753
965444127486
1023051331051
11985996a221
124573a167a3
1322348c2378
141189650bc7
158eda9e036
hex55df765eb

23051331051 has 16 divisors (see below), whose sum is σ = 35156077824. Its totient is φ = 13160849184.

The previous prime is 23051331049. The next prime is 23051331059. The reversal of 23051331051 is 15013315032.

It is not a de Polignac number, because 23051331051 - 21 = 23051331049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23051331059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447496 + ... + 496341.

It is an arithmetic number, because the mean of its divisors is an integer number (2197254864).

Almost surely, 223051331051 is an apocalyptic number.

23051331051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23051331051 is a deficient number, since it is larger than the sum of its proper divisors (12104746773).

23051331051 is a wasteful number, since it uses less digits than its factorization.

23051331051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945010.

The product of its (nonzero) digits is 1350, while the sum is 24.

Adding to 23051331051 its reverse (15013315032), we get a palindrome (38064646083).

The spelling of 23051331051 in words is "twenty-three billion, fifty-one million, three hundred thirty-one thousand, fifty-one".

Divisors: 1 3 7 21 1163 3489 8141 24423 943837 2831511 6606859 19820577 1097682431 3293047293 7683777017 23051331051