23031125311 has 4 divisors (see below), whose sum is σ = 23196817000. Its totient is φ = 22865433624.

The previous prime is 23031125303. The next prime is 23031125317. The reversal of 23031125311 is 11352113032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23031125311 - 2³ = 23031125303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031125317) 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 3 ways as a sum of consecutive naturals, for example, 82845636 + ... + 82845913.

It is an arithmetic number, because the mean of its divisors is an integer number (5799204250).

Almost surely, 2^23031125311 is an apocalyptic number.

23031125311 is a deficient number, since it is larger than the sum of its proper divisors (165691689).

23031125311 is a wasteful number, since it uses less digits than its factorization.

23031125311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165691688.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 23031125311 its reverse (11352113032), we get a palindrome (34383238343).

The spelling of 23031125311 in words is "twenty-three billion, thirty-one million, one hundred twenty-five thousand, three hundred eleven".