23231121232 has 40 divisors (see below), whose sum is σ = 49168861920. Its totient is φ = 10545252480.

The previous prime is 23231121209. The next prime is 23231121269. The reversal of 23231121232 is 23212113232.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40758 + ... + 219370.

It is an arithmetic number, because the mean of its divisors is an integer number (1229221548).

Almost surely, 2^23231121232 is an apocalyptic number.

23231121232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23231121232 is an abundant number, since it is smaller than the sum of its proper divisors (25937740688).

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

23231121232 is a wasteful number, since it uses less digits than its factorization.

23231121232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179371 (or 179365 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 23231121232 its reverse (23212113232), we get a palindrome (46443234464).

The spelling of 23231121232 in words is "twenty-three billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred thirty-two".