100405431784363 has 2 divisors, whose sum is σ = 100405431784364. Its totient is φ = 100405431784362.

The previous prime is 100405431784279. The next prime is 100405431784387. The reversal of 100405431784363 is 363487134504001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100405431784363 - 2²⁵ = 100405398229931 is a prime.

It is a super-2 number, since 2×100405431784363² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100405431184363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50202715892181 + 50202715892182.

It is an arithmetic number, because the mean of its divisors is an integer number (50202715892182).

Almost surely, 2^{100405431784363} is an apocalyptic number.

100405431784363 is a deficient number, since it is larger than the sum of its proper divisors (1).

100405431784363 is an equidigital number, since it uses as much as digits as its factorization.

100405431784363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 100405431784363 in words is "one hundred trillion, four hundred five billion, four hundred thirty-one million, seven hundred eighty-four thousand, three hundred sixty-three".