100431302420 has 24 divisors (see below), whose sum is σ = 210944882400. Its totient is φ = 40165064352.

The previous prime is 100431302417. The next prime is 100431302497. The reversal of 100431302420 is 24203134001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 100431302392 and 100431302401.

It is a congruent number.

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, 354950 + ... + 571709.

It is an arithmetic number, because the mean of its divisors is an integer number (8789370100).

Almost surely, 2^100431302420 is an apocalyptic number.

100431302420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100431302420 is an abundant number, since it is smaller than the sum of its proper divisors (110513579980).

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

100431302420 is a wasteful number, since it uses less digits than its factorization.

100431302420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932087 (or 932085 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 100431302420 its reverse (24203134001), we get a palindrome (124634436421).

The spelling of 100431302420 in words is "one hundred billion, four hundred thirty-one million, three hundred two thousand, four hundred twenty".