201431435500404 has 120 divisors (see below), whose sum is σ = 557581998093120. Its totient is φ = 63191336557824.

The previous prime is 201431435500403. The next prime is 201431435500429. The reversal of 201431435500404 is 404005534134102.

201431435500404 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 3 + 143 + 5 + 500 + 4 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201431435500403) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 123488767 + ... + 125109305.

It is an arithmetic number, because the mean of its divisors is an integer number (4646516650776).

Almost surely, 2^{201431435500404} is an apocalyptic number.

It is an amenable number.

201431435500404 is an abundant number, since it is smaller than the sum of its proper divisors (356150562592716).

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

201431435500404 is a wasteful number, since it uses less digits than its factorization.

201431435500404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643139 (or 1643128 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 201431435500404 its reverse (404005534134102), we get a palindrome (605436969634506).

The spelling of 201431435500404 in words is "two hundred one trillion, four hundred thirty-one billion, four hundred thirty-five million, five hundred thousand, four hundred four".