42231101434431 has 64 divisors (see below), whose sum is σ = 71286026649600. Its totient is φ = 21644945421696.

The previous prime is 42231101434399. The next prime is 42231101434441. The reversal of 42231101434431 is 13443410113224.

It is a happy number.

It is not a de Polignac number, because 42231101434431 - 2⁵ = 42231101434399 is a prime.

It is a super-2 number, since 2×42231101434431² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42231101434392 and 42231101434401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42231101434441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10055821 + ... + 13622838.

It is an arithmetic number, because the mean of its divisors is an integer number (1113844166400).

Almost surely, 2^{42231101434431} is an apocalyptic number.

42231101434431 is a deficient number, since it is larger than the sum of its proper divisors (29054925215169).

42231101434431 is a wasteful number, since it uses less digits than its factorization.

42231101434431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23678868.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 42231101434431 its reverse (13443410113224), we get a palindrome (55674511547655).

The spelling of 42231101434431 in words is "forty-two trillion, two hundred thirty-one billion, one hundred one million, four hundred thirty-four thousand, four hundred thirty-one".