111143103210 has 128 divisors (see below), whose sum is σ = 297783336960. Its totient is φ = 29498370048.

The previous prime is 111143103187. The next prime is 111143103223. The reversal of 111143103210 is 12301341111.

It is a happy number.

111143103210 is a `hidden beast` number, since 11 + 11 + 431 + 0 + 3 + 210 = 666.

111143103210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111143103210² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 69594132 + ... + 69595728.

It is an arithmetic number, because the mean of its divisors is an integer number (2326432320).

Almost surely, 2^111143103210 is an apocalyptic number.

111143103210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111143103210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148891668480).

111143103210 is an abundant number, since it is smaller than the sum of its proper divisors (186640233750).

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

111143103210 is a wasteful number, since it uses less digits than its factorization.

111143103210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669 (or 2663 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111143103210 its reverse (12301341111), we get a palindrome (123444444321).

The spelling of 111143103210 in words is "one hundred eleven billion, one hundred forty-three million, one hundred three thousand, two hundred ten".