20402100140104 has 128 divisors (see below), whose sum is σ = 41839309209600. Its totient is φ = 9291032536320.

The previous prime is 20402100140083. The next prime is 20402100140143. The reversal of 20402100140104 is 40104100120402.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1571440797 + ... + 1571453779.

It is an arithmetic number, because the mean of its divisors is an integer number (326869603200).

Almost surely, 2^{20402100140104} is an apocalyptic number.

It is an amenable number.

20402100140104 is an abundant number, since it is smaller than the sum of its proper divisors (21437209069496).

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

20402100140104 is a wasteful number, since it uses less digits than its factorization.

20402100140104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15203 (or 15199 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20402100140104 its reverse (40104100120402), we get a palindrome (60506200260506).

The spelling of 20402100140104 in words is "twenty trillion, four hundred two billion, one hundred million, one hundred forty thousand, one hundred four".