23012235431 has 2 divisors, whose sum is σ = 23012235432. Its totient is φ = 23012235430.

The previous prime is 23012235343. The next prime is 23012235461. The reversal of 23012235431 is 13453221032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23012235431 is a prime.

It is a super-2 number, since 2×23012235431² (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 23012235431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23012235461) 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 as a sum of consecutive naturals, namely, 11506117715 + 11506117716.

It is an arithmetic number, because the mean of its divisors is an integer number (11506117716).

Almost surely, 2^23012235431 is an apocalyptic number.

23012235431 is a deficient number, since it is larger than the sum of its proper divisors (1).

23012235431 is an equidigital number, since it uses as much as digits as its factorization.

23012235431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 23012235431 its reverse (13453221032), we get a palindrome (36465456463).

The spelling of 23012235431 in words is "twenty-three billion, twelve million, two hundred thirty-five thousand, four hundred thirty-one".