203012123320 has 32 divisors (see below), whose sum is σ = 456790435920. Its totient is φ = 81202510080.

The previous prime is 203012123309. The next prime is 203012123371. The reversal of 203012123320 is 23321210302.

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, 2223775 + ... + 2313265.

Almost surely, 2^203012123320 is an apocalyptic number.

203012123320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203012123320 is an abundant number, since it is smaller than the sum of its proper divisors (253778312600).

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

203012123320 is a wasteful number, since it uses less digits than its factorization.

203012123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146215 (or 146211 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 203012123320 its reverse (23321210302), we get a palindrome (226333333622).

It can be divided in two parts, 2030 and 12123320, that added together give a triangular number (12125350 = T₄₉₂₄).

The spelling of 203012123320 in words is "two hundred three billion, twelve million, one hundred twenty-three thousand, three hundred twenty".