42030310440021 has 4 divisors (see below), whose sum is σ = 56040413920032. Its totient is φ = 28020206960012.

The previous prime is 42030310439983. The next prime is 42030310440031. The reversal of 42030310440021 is 12004401303024.

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 42030310440021 - 2²⁵ = 42030276885589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42030310439973 and 42030310440000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42030310440031) 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, 7005051740001 + ... + 7005051740006.

It is an arithmetic number, because the mean of its divisors is an integer number (14010103480008).

Almost surely, 2^{42030310440021} is an apocalyptic number.

It is an amenable number.

42030310440021 is a deficient number, since it is larger than the sum of its proper divisors (14010103480011).

42030310440021 is a wasteful number, since it uses less digits than its factorization.

42030310440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14010103480010.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42030310440021 its reverse (12004401303024), we get a palindrome (54034711743045).

The spelling of 42030310440021 in words is "forty-two trillion, thirty billion, three hundred ten million, four hundred forty thousand, twenty-one".