3120000310157 has 2 divisors, whose sum is σ = 3120000310158. Its totient is φ = 3120000310156.

The previous prime is 3120000310129. The next prime is 3120000310169. The reversal of 3120000310157 is 7510130000213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2408396713801 + 711603596356 = 1551901^2 + 843566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120000310157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3120000310057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560000155078 + 1560000155079.

It is an arithmetic number, because the mean of its divisors is an integer number (1560000155079).

Almost surely, 2^{3120000310157} is an apocalyptic number.

It is an amenable number.

3120000310157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120000310157 is an equidigital number, since it uses as much as digits as its factorization.

3120000310157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 23.

The spelling of 3120000310157 in words is "three trillion, one hundred twenty billion, three hundred ten thousand, one hundred fifty-seven".