23231140555 has 32 divisors (see below), whose sum is σ = 32617728000. Its totient is φ = 15554620032.

The previous prime is 23231140529. The next prime is 23231140567. The reversal of 23231140555 is 55504113232.

It is a de Polignac number, because none of the positive numbers 2^k-23231140555 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269934 + ... + 345436.

It is an arithmetic number, because the mean of its divisors is an integer number (1019304000).

Almost surely, 2^23231140555 is an apocalyptic number.

23231140555 is a deficient number, since it is larger than the sum of its proper divisors (9386587445).

23231140555 is a wasteful number, since it uses less digits than its factorization.

23231140555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75723.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 23231140555 its reverse (55504113232), we get a palindrome (78735253787).

The spelling of 23231140555 in words is "twenty-three billion, two hundred thirty-one million, one hundred forty thousand, five hundred fifty-five".