102120100109 has 8 divisors (see below), whose sum is σ = 110116668480. Its totient is φ = 94385714400.

The previous prime is 102120100067. The next prime is 102120100151. The reversal of 102120100109 is 901001021201.

It is an interprime number because it is at equal distance from previous prime (102120100067) and next prime (102120100151).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102120100109 - 2²⁰ = 102119051533 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 (102120102109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65544857 + ... + 65546414.

It is an arithmetic number, because the mean of its divisors is an integer number (13764583560).

Almost surely, 2^102120100109 is an apocalyptic number.

102120100109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

102120100109 is a deficient number, since it is larger than the sum of its proper divisors (7996568371).

102120100109 is a wasteful number, since it uses less digits than its factorization.

102120100109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131091331.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 102120100109 in words is "one hundred two billion, one hundred twenty million, one hundred thousand, one hundred nine".