20103211031232 has 56 divisors (see below), whose sum is σ = 60788280979456. Its totient is φ = 5743774579968.

The previous prime is 20103211031209. The next prime is 20103211031261. The reversal of 20103211031232 is 23213011230102.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20103211031199 and 20103211031208.

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, 7478871808 + ... + 7478874495.

Almost surely, 2^{20103211031232} is an apocalyptic number.

It is an amenable number.

20103211031232 is an abundant number, since it is smaller than the sum of its proper divisors (40685069948224).

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

20103211031232 is a wasteful number, since it uses less digits than its factorization.

20103211031232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14957746325 (or 14957746315 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20103211031232 its reverse (23213011230102), we get a palindrome (43316222261334).

The spelling of 20103211031232 in words is "twenty trillion, one hundred three billion, two hundred eleven million, thirty-one thousand, two hundred thirty-two".