120102111001 has 4 divisors (see below), whose sum is σ = 120205381392. Its totient is φ = 119998840612.

The previous prime is 120102110993. The next prime is 120102111011. The reversal of 120102111001 is 100111201021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100111201021 = 13 ⋅7700861617.

It is a cyclic number.

It is not a de Polignac number, because 120102111001 - 2³ = 120102110993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120102111011) 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, 51633451 + ... + 51635776.

It is an arithmetic number, because the mean of its divisors is an integer number (30051345348).

Almost surely, 2^120102111001 is an apocalyptic number.

It is an amenable number.

120102111001 is a deficient number, since it is larger than the sum of its proper divisors (103270391).

120102111001 is a wasteful number, since it uses less digits than its factorization.

120102111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103270390.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 120102111001 its reverse (100111201021), we get a palindrome (220213312022).

The spelling of 120102111001 in words is "one hundred twenty billion, one hundred two million, one hundred eleven thousand, one".