101211100157 has 2 divisors, whose sum is σ = 101211100158. Its totient is φ = 101211100156.

The previous prime is 101211100087. The next prime is 101211100181. The reversal of 101211100157 is 751001112101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87887938681 + 13323161476 = 296459^2 + 115426^2 .

It is a cyclic number.

It is not a de Polignac number, because 101211100157 - 2²⁰ = 101210051581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101211100457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605550078 + 50605550079.

It is an arithmetic number, because the mean of its divisors is an integer number (50605550079).

Almost surely, 2^101211100157 is an apocalyptic number.

It is an amenable number.

101211100157 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211100157 is an equidigital number, since it uses as much as digits as its factorization.

101211100157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70, while the sum is 20.

Adding to 101211100157 its reverse (751001112101), we get a palindrome (852212212258).

The spelling of 101211100157 in words is "one hundred one billion, two hundred eleven million, one hundred thousand, one hundred fifty-seven".