42697102021 has 8 divisors (see below), whose sum is σ = 49792539200. Its totient is φ = 36597515724.

The previous prime is 42697101989. The next prime is 42697102033. The reversal of 42697102021 is 12020179624.

It is not a de Polignac number, because 42697102021 - 2⁵ = 42697101989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42697102061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62240331 + ... + 62241016.

It is an arithmetic number, because the mean of its divisors is an integer number (6224067400).

Almost surely, 2^42697102021 is an apocalyptic number.

It is an amenable number.

42697102021 is a deficient number, since it is larger than the sum of its proper divisors (7095437179).

42697102021 is an equidigital number, since it uses as much as digits as its factorization.

42697102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124481368 (or 124481354 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 42697102021 in words is "forty-two billion, six hundred ninety-seven million, one hundred two thousand, twenty-one".