42515031701 has 2 divisors, whose sum is σ = 42515031702. Its totient is φ = 42515031700.

The previous prime is 42515031679. The next prime is 42515031703. The reversal of 42515031701 is 10713051524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27256359025 + 15258672676 = 165095^2 + 123526^2 .

It is a cyclic number.

It is not a de Polignac number, because 42515031701 - 2²⁶ = 42447922837 is a prime.

Together with 42515031703, 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 (42515031703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21257515850 + 21257515851.

It is an arithmetic number, because the mean of its divisors is an integer number (21257515851).

Almost surely, 2^42515031701 is an apocalyptic number.

It is an amenable number.

42515031701 is a deficient number, since it is larger than the sum of its proper divisors (1).

42515031701 is an equidigital number, since it uses as much as digits as its factorization.

42515031701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The spelling of 42515031701 in words is "forty-two billion, five hundred fifteen million, thirty-one thousand, seven hundred one".