100120998973 has 2 divisors, whose sum is σ = 100120998974. Its totient is φ = 100120998972.

The previous prime is 100120998961. The next prime is 100120998977. The reversal of 100120998973 is 379899021001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61641468729 + 38479530244 = 248277^2 + 196162^2 .

It is an emirp because it is prime and its reverse (379899021001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100120998973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100120998977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060499486 + 50060499487.

It is an arithmetic number, because the mean of its divisors is an integer number (50060499487).

Almost surely, 2^100120998973 is an apocalyptic number.

It is an amenable number.

100120998973 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120998973 is an equidigital number, since it uses as much as digits as its factorization.

100120998973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 49.

The spelling of 100120998973 in words is "one hundred billion, one hundred twenty million, nine hundred ninety-eight thousand, nine hundred seventy-three".