23101231312 has 20 divisors (see below), whose sum is σ = 44810767840. Its totient is φ = 11537162208.

The previous prime is 23101231277. The next prime is 23101231469. The reversal of 23101231312 is 21313210132.

It is a self number, because there is not a number n which added to its sum of digits gives 23101231312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826668 + ... + 854155.

It is an arithmetic number, because the mean of its divisors is an integer number (2240538392).

Almost surely, 2^23101231312 is an apocalyptic number.

It is an amenable number.

23101231312 is a deficient number, since it is larger than the sum of its proper divisors (21709536528).

23101231312 is a wasteful number, since it uses less digits than its factorization.

23101231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681690 (or 1681684 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23101231312 its reverse (21313210132), we get a palindrome (44414441444).

The spelling of 23101231312 in words is "twenty-three billion, one hundred one million, two hundred thirty-one thousand, three hundred twelve".