111437913513 has 8 divisors (see below), whose sum is σ = 148743828000. Its totient is φ = 74211970688.

The previous prime is 111437913491. The next prime is 111437913533. The reversal of 111437913513 is 315319734111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111437913513 - 2⁵ = 111437913481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111437913533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19989663 + ... + 19995236.

It is an arithmetic number, because the mean of its divisors is an integer number (18592978500).

Almost surely, 2^111437913513 is an apocalyptic number.

It is an amenable number.

111437913513 is a deficient number, since it is larger than the sum of its proper divisors (37305914487).

111437913513 is an equidigital number, since it uses as much as digits as its factorization.

111437913513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39985831.

The product of its digits is 34020, while the sum is 39.

The spelling of 111437913513 in words is "one hundred eleven billion, four hundred thirty-seven million, nine hundred thirteen thousand, five hundred thirteen".