30122013 has 4 divisors (see below), whose sum is σ = 40162688. Its totient is φ = 20081340.

The previous prime is 30121999. The next prime is 30122017. The reversal of 30122013 is 31022103.

It is a happy number.

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 not a de Polignac number, because 30122013 - 2⁴ = 30121997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30122013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122017) 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, 5020333 + ... + 5020338.

It is an arithmetic number, because the mean of its divisors is an integer number (10040672).

Almost surely, 2^30122013 is an apocalyptic number.

It is an amenable number.

30122013 is a deficient number, since it is larger than the sum of its proper divisors (10040675).

30122013 is a wasteful number, since it uses less digits than its factorization.

30122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10040674.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30122013 is about 5488.3524850359. The cubic root of 30122013 is about 311.1439283078.

Adding to 30122013 its reverse (31022103), we get a palindrome (61144116).

The spelling of 30122013 in words is "thirty million, one hundred twenty-two thousand, thirteen".