203233220031131 has 4 divisors (see below), whose sum is σ = 210241262101200. Its totient is φ = 196225177961064.

The previous prime is 203233220031091. The next prime is 203233220031157. The reversal of 203233220031131 is 131130022332302.

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 203233220031131 - 2³⁴ = 203216040161947 is a prime.

It is a super-2 number, since 2×203233220031131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203233220031131.

It is not an unprimeable number, because it can be changed into a prime (203233220037131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504021034991 + ... + 3504021035048.

It is an arithmetic number, because the mean of its divisors is an integer number (52560315525300).

Almost surely, 2^{203233220031131} is an apocalyptic number.

203233220031131 is a deficient number, since it is larger than the sum of its proper divisors (7008042070069).

203233220031131 is an equidigital number, since it uses as much as digits as its factorization.

203233220031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008042070068.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 203233220031131 its reverse (131130022332302), we get a palindrome (334363242363433).

The spelling of 203233220031131 in words is "two hundred three trillion, two hundred thirty-three billion, two hundred twenty million, thirty-one thousand, one hundred thirty-one".