103112323131 has 4 divisors (see below), whose sum is σ = 137483097512. Its totient is φ = 68741548752.

The previous prime is 103112323123. The next prime is 103112323147. The reversal of 103112323131 is 131323211301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131323211301 = 3 ⋅43774403767.

It is not a de Polignac number, because 103112323131 - 2³ = 103112323123 is a prime.

It is a super-2 number, since 2×103112323131² (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 = 103112323098 and 103112323107.

It is not an unprimeable number, because it can be changed into a prime (103112323031) 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, 17185387186 + ... + 17185387191.

It is an arithmetic number, because the mean of its divisors is an integer number (34370774378).

Almost surely, 2^103112323131 is an apocalyptic number.

103112323131 is a deficient number, since it is larger than the sum of its proper divisors (34370774381).

103112323131 is an equidigital number, since it uses as much as digits as its factorization.

103112323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34370774380.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 103112323131 its reverse (131323211301), we get a palindrome (234435534432).

The spelling of 103112323131 in words is "one hundred three billion, one hundred twelve million, three hundred twenty-three thousand, one hundred thirty-one".