104020131402 has 96 divisors (see below), whose sum is σ = 258905387520. Its totient is φ = 29850780960.

The previous prime is 104020131367. The next prime is 104020131409. The reversal of 104020131402 is 204131020401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (104020131409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17313483 + ... + 17319489.

It is an arithmetic number, because the mean of its divisors is an integer number (2696931120).

Almost surely, 2^104020131402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104020131402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129452693760).

104020131402 is an abundant number, since it is smaller than the sum of its proper divisors (154885256118).

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

104020131402 is a wasteful number, since it uses less digits than its factorization.

104020131402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10648 (or 10645 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 104020131402 its reverse (204131020401), we get a palindrome (308151151803).

The spelling of 104020131402 in words is "one hundred four billion, twenty million, one hundred thirty-one thousand, four hundred two".