100421431967 has 2 divisors, whose sum is σ = 100421431968. Its totient is φ = 100421431966.

The previous prime is 100421431951. The next prime is 100421432021. The reversal of 100421431967 is 769134124001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100421431967 - 2⁴ = 100421431951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100421431967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100421431067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210715983 + 50210715984.

It is an arithmetic number, because the mean of its divisors is an integer number (50210715984).

Almost surely, 2^100421431967 is an apocalyptic number.

100421431967 is a deficient number, since it is larger than the sum of its proper divisors (1).

100421431967 is an equidigital number, since it uses as much as digits as its factorization.

100421431967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

Adding to 100421431967 its reverse (769134124001), we get a palindrome (869555555968).

The spelling of 100421431967 in words is "one hundred billion, four hundred twenty-one million, four hundred thirty-one thousand, nine hundred sixty-seven".