100031099947 has 2 divisors, whose sum is σ = 100031099948. Its totient is φ = 100031099946.

The previous prime is 100031099929. The next prime is 100031099963. The reversal of 100031099947 is 749990130001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100031099947 is a prime.

It is not a weakly prime, because it can be changed into another prime (100031099977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50015549973 + 50015549974.

It is an arithmetic number, because the mean of its divisors is an integer number (50015549974).

Almost surely, 2^100031099947 is an apocalyptic number.

100031099947 is a deficient number, since it is larger than the sum of its proper divisors (1).

100031099947 is an equidigital number, since it uses as much as digits as its factorization.

100031099947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 100031099947 in words is "one hundred billion, thirty-one million, ninety-nine thousand, nine hundred forty-seven".