23220231312 has 40 divisors (see below), whose sum is σ = 60020426304. Its totient is φ = 7735583104.

The previous prime is 23220231311. The next prime is 23220231313. The reversal of 23220231312 is 21313202232.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23220231311) and next prime (23220231313).

It is not an unprimeable number, because it can be changed into a prime (23220231311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56388 + ... + 222755.

Almost surely, 2^23220231312 is an apocalyptic number.

It is an amenable number.

23220231312 is an abundant number, since it is smaller than the sum of its proper divisors (36800194992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23220231312 is a wasteful number, since it uses less digits than its factorization.

23220231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280887 (or 280881 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23220231312 its reverse (21313202232), we get a palindrome (44533433544).

The spelling of 23220231312 in words is "twenty-three billion, two hundred twenty million, two hundred thirty-one thousand, three hundred twelve".