120910891111 has 8 divisors (see below), whose sum is σ = 122550529280. Its totient is φ = 119273981112.

The previous prime is 120910891067. The next prime is 120910891139. The reversal of 120910891111 is 111198019021.

It is a happy number.

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 120910891111 - 2²³ = 120902502503 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 (120910891811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592725 + ... + 770158.

It is an arithmetic number, because the mean of its divisors is an integer number (15318816160).

Almost surely, 2^120910891111 is an apocalyptic number.

120910891111 is a deficient number, since it is larger than the sum of its proper divisors (1639638169).

120910891111 is a wasteful number, since it uses less digits than its factorization.

120910891111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364085.

The product of its (nonzero) digits is 1296, while the sum is 34.

The spelling of 120910891111 in words is "one hundred twenty billion, nine hundred ten million, eight hundred ninety-one thousand, one hundred eleven".