21232030312032 has 48 divisors (see below), whose sum is σ = 55824410485872. Its totient is φ = 7065872844800.

The previous prime is 21232030311971. The next prime is 21232030312049. The reversal of 21232030312032 is 23021303023212.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×21232030312032² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 21232030311993 and 21232030312011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179168469 + ... + 179286932.

It is an arithmetic number, because the mean of its divisors is an integer number (1163008551789).

Almost surely, 2^{21232030312032} is an apocalyptic number.

It is an amenable number.

21232030312032 is an abundant number, since it is smaller than the sum of its proper divisors (34592380173840).

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

21232030312032 is a wasteful number, since it uses less digits than its factorization.

21232030312032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358456031 (or 358456023 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21232030312032 its reverse (23021303023212), we get a palindrome (44253333335244).

The spelling of 21232030312032 in words is "twenty-one trillion, two hundred thirty-two billion, thirty million, three hundred twelve thousand, thirty-two".