111141931439 has 24 divisors (see below), whose sum is σ = 140347490304. Its totient is φ = 86150552400.

The previous prime is 111141931429. The next prime is 111141931451. The reversal of 111141931439 is 934139141111.

It is not a de Polignac number, because 111141931439 - 2²⁰ = 111140882863 is a prime.

It is a super-2 number, since 2×111141931439² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111141931409) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 181727 + ... + 505280.

It is an arithmetic number, because the mean of its divisors is an integer number (5847812096).

Almost surely, 2^111141931439 is an apocalyptic number.

111141931439 is a deficient number, since it is larger than the sum of its proper divisors (29205558865).

111141931439 is a wasteful number, since it uses less digits than its factorization.

111141931439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687227 (or 687216 counting only the distinct ones).

The product of its digits is 11664, while the sum is 38.

The spelling of 111141931439 in words is "one hundred eleven billion, one hundred forty-one million, nine hundred thirty-one thousand, four hundred thirty-nine".