111021130040 has 64 divisors (see below), whose sum is σ = 259129584000. Its totient is φ = 42776847360.

The previous prime is 111021130037. The next prime is 111021130043. The reversal of 111021130040 is 40031120111.

It is an interprime number because it is at equal distance from previous prime (111021130037) and next prime (111021130043).

It is a junction number, because it is equal to n+sod(n) for n = 111021129997 and 111021130024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021130043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298895 + ... + 558014.

It is an arithmetic number, because the mean of its divisors is an integer number (4048899750).

Almost surely, 2^111021130040 is an apocalyptic number.

111021130040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021130040 is an abundant number, since it is smaller than the sum of its proper divisors (148108453960).

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

111021130040 is a wasteful number, since it uses less digits than its factorization.

111021130040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857040 (or 857036 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111021130040 its reverse (40031120111), we get a palindrome (151052250151).

The spelling of 111021130040 in words is "one hundred eleven billion, twenty-one million, one hundred thirty thousand, forty".