42360572021 has 4 divisors (see below), whose sum is σ = 42451280352. Its totient is φ = 42269863692.

The previous prime is 42360572017. The next prime is 42360572053. The reversal of 42360572021 is 12027506324.

42360572021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42360572021 - 2² = 42360572017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42360575021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45353465 + ... + 45354398.

It is an arithmetic number, because the mean of its divisors is an integer number (10612820088).

Almost surely, 2^42360572021 is an apocalyptic number.

It is an amenable number.

42360572021 is a deficient number, since it is larger than the sum of its proper divisors (90708331).

42360572021 is an equidigital number, since it uses as much as digits as its factorization.

42360572021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90708330.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 42360572021 in words is "forty-two billion, three hundred sixty million, five hundred seventy-two thousand, twenty-one".