100010991621403 has 2 divisors, whose sum is σ = 100010991621404. Its totient is φ = 100010991621402.

The previous prime is 100010991621379. The next prime is 100010991621433. The reversal of 100010991621403 is 304126199010001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100010991621403 is a prime.

It is not a weakly prime, because it can be changed into another prime (100010991621433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005495810701 + 50005495810702.

It is an arithmetic number, because the mean of its divisors is an integer number (50005495810702).

Almost surely, 2^{100010991621403} is an apocalyptic number.

100010991621403 is a deficient number, since it is larger than the sum of its proper divisors (1).

100010991621403 is an equidigital number, since it uses as much as digits as its factorization.

100010991621403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 100010991621403 in words is "one hundred trillion, ten billion, nine hundred ninety-one million, six hundred twenty-one thousand, four hundred three".