111210113020 has 48 divisors (see below), whose sum is σ = 237440548800. Its totient is φ = 43744547840.

The previous prime is 111210113009. The next prime is 111210113039. The reversal of 111210113020 is 20311012111.

It is a happy number.

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, 451716 + ... + 653044.

It is an arithmetic number, because the mean of its divisors is an integer number (4946678100).

Almost surely, 2^111210113020 is an apocalyptic number.

111210113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111210113020 is an abundant number, since it is smaller than the sum of its proper divisors (126230435780).

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

111210113020 is a wasteful number, since it uses less digits than its factorization.

111210113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201798 (or 201796 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111210113020 its reverse (20311012111), we get a palindrome (131521125131).

The spelling of 111210113020 in words is "one hundred eleven billion, two hundred ten million, one hundred thirteen thousand, twenty".