10120002157 has 2 divisors, whose sum is σ = 10120002158. Its totient is φ = 10120002156.

The previous prime is 10120002083. The next prime is 10120002187. The reversal of 10120002157 is 75120002101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6818465476 + 3301536681 = 82574^2 + 57459^2 .

It is a cyclic number.

It is not a de Polignac number, because 10120002157 - 2²⁷ = 9985784429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10120002187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060001078 + 5060001079.

It is an arithmetic number, because the mean of its divisors is an integer number (5060001079).

Almost surely, 2^10120002157 is an apocalyptic number.

It is an amenable number.

10120002157 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120002157 is an equidigital number, since it uses as much as digits as its factorization.

10120002157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

Adding to 10120002157 its reverse (75120002101), we get a palindrome (85240004258).

The spelling of 10120002157 in words is "ten billion, one hundred twenty million, two thousand, one hundred fifty-seven".