111020331000 has 128 divisors (see below), whose sum is σ = 357557391360. Its totient is φ = 28650384000.

The previous prime is 111020330987. The next prime is 111020331001. The reversal of 111020331000 is 133020111.

It is a super-2 number, since 2×111020331000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020331001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 503884 + ... + 689883.

It is an arithmetic number, because the mean of its divisors is an integer number (2793417120).

Almost surely, 2^111020331000 is an apocalyptic number.

111020331000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111020331000 is an abundant number, since it is smaller than the sum of its proper divisors (246537060360).

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

111020331000 is a wasteful number, since it uses less digits than its factorization.

111020331000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193822 (or 1193808 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 111020331000 its reverse (133020111), we get a palindrome (111153351111).

The spelling of 111020331000 in words is "one hundred eleven billion, twenty million, three hundred thirty-one thousand".