13120057 has 2 divisors, whose sum is σ = 13120058. Its totient is φ = 13120056.

The previous prime is 13119983. The next prime is 13120061. The reversal of 13120057 is 75002131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8173881 + 4946176 = 2859^2 + 2224^2 .

It is an emirp because it is prime and its reverse (75002131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13120057 is a prime.

It is not a weakly prime, because it can be changed into another prime (13120067) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560028 + 6560029.

It is an arithmetic number, because the mean of its divisors is an integer number (6560029).

Almost surely, 2^13120057 is an apocalyptic number.

It is an amenable number.

13120057 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120057 is an equidigital number, since it uses as much as digits as its factorization.

13120057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 13120057 is about 3622.1619234927. The cubic root of 13120057 is about 235.8550831563.

Adding to 13120057 its reverse (75002131), we get a palindrome (88122188).

The spelling of 13120057 in words is "thirteen million, one hundred twenty thousand, fifty-seven".