42312431112100 has 36 divisors (see below), whose sum is σ = 91836589593364. Its totient is φ = 16921541278080.

The previous prime is 42312431112071. The next prime is 42312431112101. The reversal of 42312431112100 is 121113421324.

It can be written as a sum of positive squares in 6 ways, for example, as 6002382400576 + 36310048711524 = 2449976^2 + 6025782^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (42312431112101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42393819 + ... + 43380418.

Almost surely, 2^{42312431112100} is an apocalyptic number.

It is an amenable number.

42312431112100 is an abundant number, since it is smaller than the sum of its proper divisors (49524158481264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42312431112100 is a wasteful number, since it uses less digits than its factorization.

42312431112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85779184 (or 85779177 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 42312431112100 its reverse (121113421324), we get a palindrome (42433544533424).

The spelling of 42312431112100 in words is "forty-two trillion, three hundred twelve billion, four hundred thirty-one million, one hundred twelve thousand, one hundred".