111311330021430 has 256 divisors, whose sum is σ = 347579987853312. Its totient is φ = 22121941248000.

The previous prime is 111311330021347. The next prime is 111311330021471. The reversal of 111311330021430 is 34120033113111.

It is a super-2 number, since 2×111311330021430² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111311330021430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 609362910 + ... + 609545550.

It is an arithmetic number, because the mean of its divisors is an integer number (1357734327552).

Almost surely, 2^{111311330021430} is an apocalyptic number.

111311330021430 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 111311330021430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173789993926656).

111311330021430 is an abundant number, since it is smaller than the sum of its proper divisors (236268657831882).

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

111311330021430 is a wasteful number, since it uses less digits than its factorization.

111311330021430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194163.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 111311330021430 its reverse (34120033113111), we get a palindrome (145431363134541).

The spelling of 111311330021430 in words is "one hundred eleven trillion, three hundred eleven billion, three hundred thirty million, twenty-one thousand, four hundred thirty".