100120100999999 has 4 divisors (see below), whose sum is σ = 100442030585520. Its totient is φ = 99798171414480.

The previous prime is 100120100999983. The next prime is 100120101000037. The reversal of 100120100999999 is 999999001021001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100120100999999 - 2⁴ = 100120100999983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120100992999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160964792294 + ... + 160964792915.

It is an arithmetic number, because the mean of its divisors is an integer number (25110507646380).

Almost surely, 2^{100120100999999} is an apocalyptic number.

100120100999999 is a deficient number, since it is larger than the sum of its proper divisors (321929585521).

100120100999999 is an equidigital number, since it uses as much as digits as its factorization.

100120100999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321929585520.

The product of its (nonzero) digits is 1062882, while the sum is 59.

The spelling of 100120100999999 in words is "one hundred trillion, one hundred twenty billion, one hundred million, nine hundred ninety-nine thousand, nine hundred ninety-nine".