20130432045400 has 48 divisors (see below), whose sum is σ = 46854630620640. Its totient is φ = 8043333916800.

The previous prime is 20130432045391. The next prime is 20130432045413. The reversal of 20130432045400 is 454023403102.

It is a happy number.

It is a super-2 number, since 2×20130432045400² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55060479 + ... + 55424878.

It is an arithmetic number, because the mean of its divisors is an integer number (976138137930).

Almost surely, 2^{20130432045400} is an apocalyptic number.

20130432045400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130432045400 is an abundant number, since it is smaller than the sum of its proper divisors (26724198575240).

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

20130432045400 is a wasteful number, since it uses less digits than its factorization.

20130432045400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110486284 (or 110486275 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 20130432045400 its reverse (454023403102), we get a palindrome (20584455448502).

The spelling of 20130432045400 in words is "twenty trillion, one hundred thirty billion, four hundred thirty-two million, forty-five thousand, four hundred".