111031401012 has 192 divisors, whose sum is σ = 322264320000. Its totient is φ = 29042800128.

The previous prime is 111031400989. The next prime is 111031401017. The reversal of 111031401012 is 210104130111.

It is a junction number, because it is equal to n+sod(n) for n = 111031400982 and 111031401000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111031401017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8792439 + ... + 8805057.

It is an arithmetic number, because the mean of its divisors is an integer number (1678460000).

Almost surely, 2^111031401012 is an apocalyptic number.

111031401012 is a gapful number since it is divisible by the number (12) 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 111031401012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161132160000).

111031401012 is an abundant number, since it is smaller than the sum of its proper divisors (211232918988).

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

111031401012 is a wasteful number, since it uses less digits than its factorization.

111031401012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12838 (or 12836 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111031401012 its reverse (210104130111), we get a palindrome (321135531123).

The spelling of 111031401012 in words is "one hundred eleven billion, thirty-one million, four hundred one thousand, twelve".