2131302320203 has 4 divisors (see below), whose sum is σ = 2435774080240. Its totient is φ = 1826830560168.

The previous prime is 2131302320171. The next prime is 2131302320227. The reversal of 2131302320203 is 3020232031312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2131302320203 - 2⁵ = 2131302320171 is a prime.

It is a super-2 number, since 2×2131302320203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131302320263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152235880008 + ... + 152235880021.

It is an arithmetic number, because the mean of its divisors is an integer number (608943520060).

Almost surely, 2^{2131302320203} is an apocalyptic number.

2131302320203 is a deficient number, since it is larger than the sum of its proper divisors (304471760037).

2131302320203 is an equidigital number, since it uses as much as digits as its factorization.

2131302320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304471760036.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2131302320203 its reverse (3020232031312), we get a palindrome (5151534351515).

The spelling of 2131302320203 in words is "two trillion, one hundred thirty-one billion, three hundred two million, three hundred twenty thousand, two hundred three".