103031012013 has 4 divisors (see below), whose sum is σ = 137374682688. Its totient is φ = 68687341340.

The previous prime is 103031012003. The next prime is 103031012101. The reversal of 103031012013 is 310210130301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103031012013 - 2⁶ = 103031011949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103031011983 and 103031012001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103031012003) 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, 17171835333 + ... + 17171835338.

It is an arithmetic number, because the mean of its divisors is an integer number (34343670672).

Almost surely, 2^103031012013 is an apocalyptic number.

It is an amenable number.

103031012013 is a deficient number, since it is larger than the sum of its proper divisors (34343670675).

103031012013 is an equidigital number, since it uses as much as digits as its factorization.

103031012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34343670674.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 103031012013 its reverse (310210130301), we get a palindrome (413241142314).

The spelling of 103031012013 in words is "one hundred three billion, thirty-one million, twelve thousand, thirteen".