442212420131 has 4 divisors (see below), whose sum is σ = 443775008472. Its totient is φ = 440649831792.

The previous prime is 442212420121. The next prime is 442212420173. The reversal of 442212420131 is 131024212244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442212420131 - 2¹⁰ = 442212419107 is a prime.

It is a super-2 number, since 2×442212420131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442212420131.

It is not an unprimeable number, because it can be changed into a prime (442212420121) 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, 781293746 + ... + 781294311.

It is an arithmetic number, because the mean of its divisors is an integer number (110943752118).

Almost surely, 2^442212420131 is an apocalyptic number.

442212420131 is a deficient number, since it is larger than the sum of its proper divisors (1562588341).

442212420131 is a wasteful number, since it uses less digits than its factorization.

442212420131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562588340.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 442212420131 its reverse (131024212244), we get a palindrome (573236632375).

The spelling of 442212420131 in words is "four hundred forty-two billion, two hundred twelve million, four hundred twenty thousand, one hundred thirty-one".