42314402021 has 4 divisors (see below), whose sum is σ = 42336092544. Its totient is φ = 42292711500.

The previous prime is 42314402017. The next prime is 42314402033. The reversal of 42314402021 is 12020441324.

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 42314402021 - 2² = 42314402017 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 (42314402071) 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, 10842335 + ... + 10846236.

It is an arithmetic number, because the mean of its divisors is an integer number (10584023136).

Almost surely, 2^42314402021 is an apocalyptic number.

It is an amenable number.

42314402021 is a deficient number, since it is larger than the sum of its proper divisors (21690523).

42314402021 is a wasteful number, since it uses less digits than its factorization.

42314402021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21690522.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 42314402021 its reverse (12020441324), we get a palindrome (54334843345).

The spelling of 42314402021 in words is "forty-two billion, three hundred fourteen million, four hundred two thousand, twenty-one".