103131431233331 has 4 divisors (see below), whose sum is σ = 104373978597672. Its totient is φ = 101888883868992.

The previous prime is 103131431233307. The next prime is 103131431233351. The reversal of 103131431233331 is 133332134131301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103131431233331 is a prime.

It is a super-2 number, since 2×103131431233331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103131431233301) 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, 621273682046 + ... + 621273682211.

It is an arithmetic number, because the mean of its divisors is an integer number (26093494649418).

Almost surely, 2^{103131431233331} is an apocalyptic number.

103131431233331 is a deficient number, since it is larger than the sum of its proper divisors (1242547364341).

103131431233331 is an equidigital number, since it uses as much as digits as its factorization.

103131431233331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242547364340.

The product of its (nonzero) digits is 17496, while the sum is 32.

Adding to 103131431233331 its reverse (133332134131301), we get a palindrome (236463565364632).

The spelling of 103131431233331 in words is "one hundred three trillion, one hundred thirty-one billion, four hundred thirty-one million, two hundred thirty-three thousand, three hundred thirty-one".