111031440256606 has 4 divisors (see below), whose sum is σ = 166547160384912. Its totient is φ = 55515720128302.

The previous prime is 111031440256591. The next prime is 111031440256613. The reversal of 111031440256606 is 606652044130111.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×111031440256606² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27757860064150 + ... + 27757860064153.

It is an arithmetic number, because the mean of its divisors is an integer number (41636790096228).

Almost surely, 2^{111031440256606} is an apocalyptic number.

111031440256606 is a deficient number, since it is larger than the sum of its proper divisors (55515720128306).

111031440256606 is an equidigital number, since it uses as much as digits as its factorization.

111031440256606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55515720128305.

The product of its (nonzero) digits is 103680, while the sum is 40.

Adding to 111031440256606 its reverse (606652044130111), we get a palindrome (717683484386717).

The spelling of 111031440256606 in words is "one hundred eleven trillion, thirty-one billion, four hundred forty million, two hundred fifty-six thousand, six hundred six".