23151231120 has 40 divisors (see below), whose sum is σ = 71768817216. Its totient is φ = 6173661568.

The previous prime is 23151231097. The next prime is 23151231127. The reversal of 23151231120 is 2113215132.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (23151231127) 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, 48231492 + ... + 48231971.

Almost surely, 2^23151231120 is an apocalyptic number.

23151231120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23151231120 is an abundant number, since it is smaller than the sum of its proper divisors (48617586096).

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

23151231120 is a wasteful number, since it uses less digits than its factorization.

23151231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96463479 (or 96463473 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 23151231120 its reverse (2113215132), we get a palindrome (25264446252).

The spelling of 23151231120 in words is "twenty-three billion, one hundred fifty-one million, two hundred thirty-one thousand, one hundred twenty".