120111000101 has 4 divisors (see below), whose sum is σ = 121349257932. Its totient is φ = 118872742272.

The previous prime is 120111000083. The next prime is 120111000109. The reversal of 120111000101 is 101000111021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101000111021 = 29 ⋅3482762449.

It can be written as a sum of positive squares in 2 ways, for example, as 56430477601 + 63680522500 = 237551^2 + 252350^2 .

It is a cyclic number.

It is not a de Polignac number, because 120111000101 - 2¹⁴ = 120110983717 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 (120111000109) 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, 619128770 + ... + 619128963.

It is an arithmetic number, because the mean of its divisors is an integer number (30337314483).

Almost surely, 2^120111000101 is an apocalyptic number.

It is an amenable number.

120111000101 is a deficient number, since it is larger than the sum of its proper divisors (1238257831).

120111000101 is an equidigital number, since it uses as much as digits as its factorization.

120111000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238257830.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 120111000101 its reverse (101000111021), we get a palindrome (221111111122).

The spelling of 120111000101 in words is "one hundred twenty billion, one hundred eleven million, one hundred one", and thus it is an aban number.