100021104431 has 2 divisors, whose sum is σ = 100021104432. Its totient is φ = 100021104430.

The previous prime is 100021104427. The next prime is 100021104451. The reversal of 100021104431 is 134401120001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100021104431 - 2² = 100021104427 is a prime.

It is a super-2 number, since 2×100021104431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100021104451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010552215 + 50010552216.

It is an arithmetic number, because the mean of its divisors is an integer number (50010552216).

Almost surely, 2^100021104431 is an apocalyptic number.

100021104431 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021104431 is an equidigital number, since it uses as much as digits as its factorization.

100021104431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 100021104431 its reverse (134401120001), we get a palindrome (234422224432).

The spelling of 100021104431 in words is "one hundred billion, twenty-one million, one hundred four thousand, four hundred thirty-one".