42400102321100 has 72 divisors (see below), whose sum is σ = 94501015350000. Its totient is φ = 16502722790400.

The previous prime is 42400102321067. The next prime is 42400102321103. The reversal of 42400102321100 is 112320100424.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (42400102321103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12089225 + ... + 15197024.

Almost surely, 2^{42400102321100} is an apocalyptic number.

It is an amenable number.

42400102321100 is an abundant number, since it is smaller than the sum of its proper divisors (52100913028900).

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

42400102321100 is a wasteful number, since it uses less digits than its factorization.

42400102321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27286683 (or 27286676 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 42400102321100 its reverse (112320100424), we get a palindrome (42512422421524).

The spelling of 42400102321100 in words is "forty-two trillion, four hundred billion, one hundred two million, three hundred twenty-one thousand, one hundred".