101010111090 has 32 divisors (see below), whose sum is σ = 277056305280. Its totient is φ = 23088025344.

The previous prime is 101010111089. The next prime is 101010111107. The reversal of 101010111090 is 90111010101.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 240500055 + ... + 240500474.

It is an arithmetic number, because the mean of its divisors is an integer number (8658009540).

Almost surely, 2^101010111090 is an apocalyptic number.

101010111090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101010111090 is an abundant number, since it is smaller than the sum of its proper divisors (176046194190).

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

101010111090 is a wasteful number, since it uses less digits than its factorization.

101010111090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481000546.

The product of its (nonzero) digits is 9, while the sum is 15.

Adding to 101010111090 its reverse (90111010101), we get a palindrome (191121121191).

The spelling of 101010111090 in words is "one hundred one billion, ten million, one hundred eleven thousand, ninety".