13120951 has 4 divisors (see below), whose sum is σ = 13343400. Its totient is φ = 12898504.

The previous prime is 13120949. The next prime is 13120979. The reversal of 13120951 is 15902131.

13120951 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13120951 - 2¹ = 13120949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111136 + ... + 111253.

It is an arithmetic number, because the mean of its divisors is an integer number (3335850).

Almost surely, 2^13120951 is an apocalyptic number.

13120951 is a deficient number, since it is larger than the sum of its proper divisors (222449).

13120951 is an equidigital number, since it uses as much as digits as its factorization.

13120951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222448.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 13120951 is about 3622.2853283528. The cubic root of 13120951 is about 235.8604400856.

The spelling of 13120951 in words is "thirteen million, one hundred twenty thousand, nine hundred fifty-one".