100400132530 has 16 divisors (see below), whose sum is σ = 181871325720. Its totient is φ = 39904255872.

The previous prime is 100400132507. The next prime is 100400132627. The reversal of 100400132530 is 35231004001.

It can be written as a sum of positive squares in 4 ways, for example, as 87392958129 + 13007174401 = 295623^2 + 114049^2 .

It is a super-2 number, since 2×100400132530² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100400132498 and 100400132507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31972995 + ... + 31976134.

Almost surely, 2^100400132530 is an apocalyptic number.

100400132530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100400132530 is a deficient number, since it is larger than the sum of its proper divisors (81471193190).

100400132530 is a wasteful number, since it uses less digits than its factorization.

100400132530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63949293.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 100400132530 its reverse (35231004001), we get a palindrome (135631136531).

The spelling of 100400132530 in words is "one hundred billion, four hundred million, one hundred thirty-two thousand, five hundred thirty".