103031122013 has 8 divisors (see below), whose sum is σ = 103137905880. Its totient is φ = 102924377920.

The previous prime is 103031121997. The next prime is 103031122021. The reversal of 103031122013 is 310221130301.

It can be written as a sum of positive squares in 4 ways, for example, as 8045731204 + 94985390809 = 89698^2 + 308197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103031122013 - 2⁴ = 103031121997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103031121982 and 103031122000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103031122043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9262331 + ... + 9273447.

It is an arithmetic number, because the mean of its divisors is an integer number (12892238235).

Almost surely, 2^103031122013 is an apocalyptic number.

It is an amenable number.

103031122013 is a deficient number, since it is larger than the sum of its proper divisors (106783867).

103031122013 is a wasteful number, since it uses less digits than its factorization.

103031122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19887.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 103031122013 its reverse (310221130301), we get a palindrome (413252252314).

The spelling of 103031122013 in words is "one hundred three billion, thirty-one million, one hundred twenty-two thousand, thirteen".