111010111001010 has 128 divisors (see below), whose sum is σ = 318823519392000. Its totient is φ = 27323401337856.

The previous prime is 111010111000969. The next prime is 111010111001047. The reversal of 111010111001010 is 10100111010111.

It is a super-2 number, since 2×111010111001010² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111010111000983 and 111010111001001.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43292161 + ... + 45784619.

It is an arithmetic number, because the mean of its divisors is an integer number (2490808745250).

Almost surely, 2^{111010111001010} is an apocalyptic number.

111010111001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111010111001010 is an abundant number, since it is smaller than the sum of its proper divisors (207813408390990).

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

111010111001010 is a wasteful number, since it uses less digits than its factorization.

111010111001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505177 (or 2505171 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111010111001010 its reverse (10100111010111), we get a palindrome (121110222011121).

The spelling of 111010111001010 in words is "one hundred eleven trillion, ten billion, one hundred eleven million, one thousand, ten".