111143667807 has 24 divisors (see below), whose sum is σ = 167547294096. Its totient is φ = 73623805632.

The previous prime is 111143667773. The next prime is 111143667841. The reversal of 111143667807 is 708766341111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111143667773) and next prime (111143667841).

It is not a de Polignac number, because 111143667807 - 2¹⁰ = 111143666783 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111143660807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1418478 + ... + 1494779.

It is an arithmetic number, because the mean of its divisors is an integer number (6981137254).

Almost surely, 2^111143667807 is an apocalyptic number.

111143667807 is a deficient number, since it is larger than the sum of its proper divisors (56403626289).

111143667807 is an equidigital number, since it uses as much as digits as its factorization.

111143667807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913429 (or 2913417 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 111143667807 in words is "one hundred eleven billion, one hundred forty-three million, six hundred sixty-seven thousand, eight hundred seven".