100990280231 has 2 divisors, whose sum is σ = 100990280232. Its totient is φ = 100990280230.

The previous prime is 100990280203. The next prime is 100990280317. The reversal of 100990280231 is 132082099001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100990280231 - 2²² = 100986085927 is a prime.

It is a super-2 number, since 2×100990280231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100990280191 and 100990280200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100990280431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50495140115 + 50495140116.

It is an arithmetic number, because the mean of its divisors is an integer number (50495140116).

Almost surely, 2^100990280231 is an apocalyptic number.

100990280231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100990280231 is an equidigital number, since it uses as much as digits as its factorization.

100990280231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 100990280231 in words is "one hundred billion, nine hundred ninety million, two hundred eighty thousand, two hundred thirty-one".