2031203221320 has 256 divisors, whose sum is σ = 7702526845440. Its totient is φ = 416978731008.

The previous prime is 2031203221301. The next prime is 2031203221321. The reversal of 2031203221320 is 231223021302.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (2031203221321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2109577 + ... + 2917656.

It is an arithmetic number, because the mean of its divisors is an integer number (30087995490).

Almost surely, 2^{2031203221320} is an apocalyptic number.

2031203221320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031203221320 is an abundant number, since it is smaller than the sum of its proper divisors (5671323624120).

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

2031203221320 is a wasteful number, since it uses less digits than its factorization.

2031203221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027304 (or 5027300 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2031203221320 its reverse (231223021302), we get a palindrome (2262426242622).

The spelling of 2031203221320 in words is "two trillion, thirty-one billion, two hundred three million, two hundred twenty-one thousand, three hundred twenty".