103231312002157 has 2 divisors, whose sum is σ = 103231312002158. Its totient is φ = 103231312002156.

The previous prime is 103231312002127. The next prime is 103231312002179. The reversal of 103231312002157 is 751200213132301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95253969314596 + 7977342687561 = 9759814^2 + 2824419^2 .

It is a cyclic number.

It is not a de Polignac number, because 103231312002157 - 2⁷ = 103231312002029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103231312002127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51615656001078 + 51615656001079.

It is an arithmetic number, because the mean of its divisors is an integer number (51615656001079).

Almost surely, 2^{103231312002157} is an apocalyptic number.

It is an amenable number.

103231312002157 is a deficient number, since it is larger than the sum of its proper divisors (1).

103231312002157 is an equidigital number, since it uses as much as digits as its factorization.

103231312002157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

Adding to 103231312002157 its reverse (751200213132301), we get a palindrome (854431525134458).

The spelling of 103231312002157 in words is "one hundred three trillion, two hundred thirty-one billion, three hundred twelve million, two thousand, one hundred fifty-seven".