103203203131 has 6 divisors (see below), whose sum is σ = 120052705740. Its totient is φ = 88459888356.

The previous prime is 103203203123. The next prime is 103203203143. The reversal of 103203203131 is 131302302301.

It is not a de Polignac number, because 103203203131 - 2³ = 103203203123 is a prime.

It is a super-2 number, since 2×103203203131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103203203099 and 103203203108.

It is not an unprimeable number, because it can be changed into a prime (103203203171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1053093861 + ... + 1053093958.

It is an arithmetic number, because the mean of its divisors is an integer number (20008784290).

Almost surely, 2^103203203131 is an apocalyptic number.

103203203131 is a deficient number, since it is larger than the sum of its proper divisors (16849502609).

103203203131 is an equidigital number, since it uses as much as digits as its factorization.

103203203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106187833 (or 2106187826 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 103203203131 its reverse (131302302301), we get a palindrome (234505505432).

The spelling of 103203203131 in words is "one hundred three billion, two hundred three million, two hundred three thousand, one hundred thirty-one".