1111111102920 has 256 divisors, whose sum is σ = 4158766563840. Its totient is φ = 231220666368.

The previous prime is 1111111102919. The next prime is 1111111102939. The reversal of 1111111102920 is 292011111111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 100242 + ... + 1494078.

It is an arithmetic number, because the mean of its divisors is an integer number (16245181890).

Almost surely, 2^{1111111102920} is an apocalyptic number.

1111111102920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111111102920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2079383281920).

1111111102920 is an abundant number, since it is smaller than the sum of its proper divisors (3047655460920).

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

1111111102920 is a wasteful number, since it uses less digits than its factorization.

1111111102920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393944 (or 1393940 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 21.

The spelling of 1111111102920 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred two thousand, nine hundred twenty".