13120901 has 4 divisors (see below), whose sum is σ = 13216812. Its totient is φ = 13024992.

The previous prime is 13120897. The next prime is 13120907. The reversal of 13120901 is 10902131.

It is a happy number.

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 6225025 + 6895876 = 2495^2 + 2626^2 .

It is a cyclic number.

It is not a de Polignac number, because 13120901 - 2² = 13120897 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 13120901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120907) 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, 47750 + ... + 48023.

It is an arithmetic number, because the mean of its divisors is an integer number (3304203).

Almost surely, 2^13120901 is an apocalyptic number.

It is an amenable number.

13120901 is a deficient number, since it is larger than the sum of its proper divisors (95911).

13120901 is an equidigital number, since it uses as much as digits as its factorization.

13120901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95910.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 13120901 is about 3622.2784266260. The cubic root of 13120901 is about 235.8601404875.

The spelling of 13120901 in words is "thirteen million, one hundred twenty thousand, nine hundred one".