20131404354 has 24 divisors (see below), whose sum is σ = 44441026812. Its totient is φ = 6583855200.

The previous prime is 20131404331. The next prime is 20131404379. The reversal of 20131404354 is 45340413102.

It is a happy number.

20131404354 is a `hidden beast` number, since 201 + 3 + 1 + 404 + 3 + 54 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16866996129 + 3264408225 = 129873^2 + 57135^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10550097 + ... + 10552004.

Almost surely, 2^20131404354 is an apocalyptic number.

20131404354 is an abundant number, since it is smaller than the sum of its proper divisors (24309622458).

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

20131404354 is a wasteful number, since it uses less digits than its factorization.

20131404354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21102162 (or 21102159 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20131404354 its reverse (45340413102), we get a palindrome (65471817456).

The spelling of 20131404354 in words is "twenty billion, one hundred thirty-one million, four hundred four thousand, three hundred fifty-four".