21233130401024 has 36 divisors (see below), whose sum is σ = 42552176859360. Its totient is φ = 10574268096000.

The previous prime is 21233130401009. The next prime is 21233130401047. The reversal of 21233130401024 is 42010403133212.

It is a super-2 number, since 2×21233130401024² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21233130400984 and 21233130401002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165158684 + ... + 165287195.

It is an arithmetic number, because the mean of its divisors is an integer number (1182004912760).

Almost surely, 2^{21233130401024} is an apocalyptic number.

It is an amenable number.

21233130401024 is an abundant number, since it is smaller than the sum of its proper divisors (21319046458336).

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

21233130401024 is an equidigital number, since it uses as much as digits as its factorization.

21233130401024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330446146 (or 330446132 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21233130401024 its reverse (42010403133212), we get a palindrome (63243533534236).

The spelling of 21233130401024 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred thirty million, four hundred one thousand, twenty-four".