23231111020040 has 64 divisors (see below), whose sum is σ = 65167791960960. Its totient is φ = 7240865771520.

The previous prime is 23231111019989. The next prime is 23231111020057. The reversal of 23231111020040 is 4002011113232.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23231111019994 and 23231111020021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3771281177 + ... + 3771287336.

It is an arithmetic number, because the mean of its divisors is an integer number (1018246749390).

Almost surely, 2^{23231111020040} is an apocalyptic number.

23231111020040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23231111020040 is an abundant number, since it is smaller than the sum of its proper divisors (41936680940920).

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

23231111020040 is a wasteful number, since it uses less digits than its factorization.

23231111020040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7542568542 (or 7542568538 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 23231111020040 its reverse (4002011113232), we get a palindrome (27233122133272).

The spelling of 23231111020040 in words is "twenty-three trillion, two hundred thirty-one billion, one hundred eleven million, twenty thousand, forty".