100403403231 has 32 divisors (see below), whose sum is σ = 143512750080. Its totient is φ = 62213612544.

The previous prime is 100403403181. The next prime is 100403403239. The reversal of 100403403231 is 132304304001.

It is not a de Polignac number, because 100403403231 - 2¹⁴ = 100403386847 is a prime.

It is a super-2 number, since 2×100403403231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100403403198 and 100403403207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100403403239) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19634331 + ... + 19639443.

It is an arithmetic number, because the mean of its divisors is an integer number (4484773440).

Almost surely, 2^100403403231 is an apocalyptic number.

100403403231 is a deficient number, since it is larger than the sum of its proper divisors (43109346849).

100403403231 is a wasteful number, since it uses less digits than its factorization.

100403403231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9855.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 100403403231 its reverse (132304304001), we get a palindrome (232707707232).

The spelling of 100403403231 in words is "one hundred billion, four hundred three million, four hundred three thousand, two hundred thirty-one".