20203113212 has 12 divisors (see below), whose sum is σ = 37216261320. Its totient is φ = 9569895696.

The previous prime is 20203113179. The next prime is 20203113257. The reversal of 20203113212 is 21231130202.

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 3 ways as a sum of consecutive naturals, for example, 132915143 + ... + 132915294.

It is an arithmetic number, because the mean of its divisors is an integer number (3101355110).

Almost surely, 2^20203113212 is an apocalyptic number.

It is an amenable number.

20203113212 is a deficient number, since it is larger than the sum of its proper divisors (17013148108).

20203113212 is a wasteful number, since it uses less digits than its factorization.

20203113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265830460 (or 265830458 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20203113212 its reverse (21231130202), we get a palindrome (41434243414).

The spelling of 20203113212 in words is "twenty billion, two hundred three million, one hundred thirteen thousand, two hundred twelve".