420442432131 has 16 divisors (see below), whose sum is σ = 578786024448. Its totient is φ = 271200415200.

The previous prime is 420442432063. The next prime is 420442432139. The reversal of 420442432131 is 131234244024.

It is not a de Polignac number, because 420442432131 - 2¹³ = 420442423939 is a prime.

It is a super-2 number, since 2×420442432131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420442432139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43765 + ... + 918041.

It is an arithmetic number, because the mean of its divisors is an integer number (36174126528).

Almost surely, 2^420442432131 is an apocalyptic number.

420442432131 is a deficient number, since it is larger than the sum of its proper divisors (158343592317).

420442432131 is a wasteful number, since it uses less digits than its factorization.

420442432131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879482.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 420442432131 its reverse (131234244024), we get a palindrome (551676676155).

The spelling of 420442432131 in words is "four hundred twenty billion, four hundred forty-two million, four hundred thirty-two thousand, one hundred thirty-one".