103122013 has 4 divisors (see below), whose sum is σ = 103718268. Its totient is φ = 102525760.

The previous prime is 103121989. The next prime is 103122031. The reversal of 103122013 is 310221301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43322724 + 59799289 = 6582^2 + 7733^2 .

It is a cyclic number.

It is not a de Polignac number, because 103122013 - 2²⁵ = 69567581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103121984 and 103122002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103122053) 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, 297868 + ... + 298213.

It is an arithmetic number, because the mean of its divisors is an integer number (25929567).

Almost surely, 2^103122013 is an apocalyptic number.

It is an amenable number.

103122013 is a deficient number, since it is larger than the sum of its proper divisors (596255).

103122013 is an equidigital number, since it uses as much as digits as its factorization.

103122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596254.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103122013 is about 10154.9009350165. The cubic root of 103122013 is about 468.9398361639.

Adding to 103122013 its reverse (310221301), we get a palindrome (413343314).

The spelling of 103122013 in words is "one hundred three million, one hundred twenty-two thousand, thirteen".