20100431421032 has 16 divisors (see below), whose sum is σ = 37689771732000. Its totient is φ = 10049825625840.

The previous prime is 20100431421019. The next prime is 20100431421061. The reversal of 20100431421032 is 23012413400102.

It is a super-2 number, since 2×20100431421032² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20100431420989 and 20100431421007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48541532 + ... + 48953867.

It is an arithmetic number, because the mean of its divisors is an integer number (2355610733250).

Almost surely, 2^{20100431421032} is an apocalyptic number.

It is an amenable number.

20100431421032 is a deficient number, since it is larger than the sum of its proper divisors (17589340310968).

20100431421032 is a wasteful number, since it uses less digits than its factorization.

20100431421032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97521176 (or 97521172 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20100431421032 its reverse (23012413400102), we get a palindrome (43112844821134).

The spelling of 20100431421032 in words is "twenty trillion, one hundred billion, four hundred thirty-one million, four hundred twenty-one thousand, thirty-two".