100431435263 has 4 divisors (see below), whose sum is σ = 100432969488. Its totient is φ = 100429901040.

The previous prime is 100431435259. The next prime is 100431435287. The reversal of 100431435263 is 362534134001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100431435263 - 2² = 100431435259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100431435253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664331 + ... + 801372.

It is an arithmetic number, because the mean of its divisors is an integer number (25108242372).

Almost surely, 2^100431435263 is an apocalyptic number.

100431435263 is a deficient number, since it is larger than the sum of its proper divisors (1534225).

100431435263 is an equidigital number, since it uses as much as digits as its factorization.

100431435263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534224.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 100431435263 its reverse (362534134001), we get a palindrome (462965569264).

The spelling of 100431435263 in words is "one hundred billion, four hundred thirty-one million, four hundred thirty-five thousand, two hundred sixty-three".