101157031 has 2 divisors, whose sum is σ = 101157032. Its totient is φ = 101157030.

The previous prime is 101157029. The next prime is 101157047. The reversal of 101157031 is 130751101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101157031 - 2¹ = 101157029 is a prime.

It is a super-2 number, since 2×101157031² = 20465489841469922, which contains 22 as substring.

Together with 101157029, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101157011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50578515 + 50578516.

It is an arithmetic number, because the mean of its divisors is an integer number (50578516).

Almost surely, 2^101157031 is an apocalyptic number.

101157031 is a deficient number, since it is larger than the sum of its proper divisors (1).

101157031 is an equidigital number, since it uses as much as digits as its factorization.

101157031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105, while the sum is 19.

The square root of 101157031 is about 10057.6851710520. The cubic root of 101157031 is about 465.9421772459.

The spelling of 101157031 in words is "one hundred one million, one hundred fifty-seven thousand, thirty-one".