101202110121157 has 2 divisors, whose sum is σ = 101202110121158. Its totient is φ = 101202110121156.

The previous prime is 101202110121109. The next prime is 101202110121239. The reversal of 101202110121157 is 751121011202101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58741325875521 + 42460784245636 = 7664289^2 + 6516194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101202110121157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101202110121457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50601055060578 + 50601055060579.

It is an arithmetic number, because the mean of its divisors is an integer number (50601055060579).

Almost surely, 2^{101202110121157} is an apocalyptic number.

It is an amenable number.

101202110121157 is a deficient number, since it is larger than the sum of its proper divisors (1).

101202110121157 is an equidigital number, since it uses as much as digits as its factorization.

101202110121157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 25.

Adding to 101202110121157 its reverse (751121011202101), we get a palindrome (852323121323258).

The spelling of 101202110121157 in words is "one hundred one trillion, two hundred two billion, one hundred ten million, one hundred twenty-one thousand, one hundred fifty-seven".