120811990110 has 32 divisors (see below), whose sum is σ = 331370030592. Its totient is φ = 27614169120.

The previous prime is 120811990093. The next prime is 120811990127. The reversal of 120811990110 is 11099118021.

It is an interprime number because it is at equal distance from previous prime (120811990093) and next prime (120811990127).

It is a super-3 number, since 3×120811990110³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287647386 + ... + 287647805.

It is an arithmetic number, because the mean of its divisors is an integer number (10355313456).

Almost surely, 2^120811990110 is an apocalyptic number.

120811990110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120811990110 is an abundant number, since it is smaller than the sum of its proper divisors (210558040482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120811990110 is a wasteful number, since it uses less digits than its factorization.

120811990110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575295208.

The product of its (nonzero) digits is 1296, while the sum is 33.

The spelling of 120811990110 in words is "one hundred twenty billion, eight hundred eleven million, nine hundred ninety thousand, one hundred ten".