31242010159 has 2 divisors, whose sum is σ = 31242010160. Its totient is φ = 31242010158.

The previous prime is 31242010147. The next prime is 31242010181. The reversal of 31242010159 is 95101024213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31242010159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31242010139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15621005079 + 15621005080.

It is an arithmetic number, because the mean of its divisors is an integer number (15621005080).

Almost surely, 2^31242010159 is an apocalyptic number.

31242010159 is a deficient number, since it is larger than the sum of its proper divisors (1).

31242010159 is an equidigital number, since it uses as much as digits as its factorization.

31242010159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 31242010159 in words is "thirty-one billion, two hundred forty-two million, ten thousand, one hundred fifty-nine".