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23013153431 is a prime number
BaseRepresentation
bin10101011011101100…
…001101101010010111
32012101211022022200222
4111123230031222113
5334112331402211
614323323424555
71443200401532
oct253354155227
965354268628
1023013153431
11983a363874
12456308515b
132229a16168
141184553a19
158ea55c1db
hex55bb0da97

23013153431 has 2 divisors, whose sum is σ = 23013153432. Its totient is φ = 23013153430.

The previous prime is 23013153389. The next prime is 23013153439. The reversal of 23013153431 is 13435131032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23013153431 - 230 = 21939411607 is a prime.

It is a super-2 number, since 2×230131534312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23013153431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23013153439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506576715 + 11506576716.

It is an arithmetic number, because the mean of its divisors is an integer number (11506576716).

Almost surely, 223013153431 is an apocalyptic number.

23013153431 is a deficient number, since it is larger than the sum of its proper divisors (1).

23013153431 is an equidigital number, since it uses as much as digits as its factorization.

23013153431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 23013153431 its reverse (13435131032), we get a palindrome (36448284463).

The spelling of 23013153431 in words is "twenty-three billion, thirteen million, one hundred fifty-three thousand, four hundred thirty-one".