111306697957 has 16 divisors (see below), whose sum is σ = 145051264512. Its totient is φ = 82886434560.

The previous prime is 111306697939. The next prime is 111306697961. The reversal of 111306697957 is 759796603111.

It is a cyclic number.

It is not a de Polignac number, because 111306697957 - 2³¹ = 109159214309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111306697898 and 111306697907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111306697967) 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, 35973469 + ... + 35976562.

It is an arithmetic number, because the mean of its divisors is an integer number (9065704032).

Almost surely, 2^111306697957 is an apocalyptic number.

111306697957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

111306697957 is a deficient number, since it is larger than the sum of its proper divisors (33744566555).

111306697957 is a wasteful number, since it uses less digits than its factorization.

111306697957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71950068.

The product of its (nonzero) digits is 2143260, while the sum is 55.

The spelling of 111306697957 in words is "one hundred eleven billion, three hundred six million, six hundred ninety-seven thousand, nine hundred fifty-seven".