111400342431 has 16 divisors (see below), whose sum is σ = 169760448000. Its totient is φ = 63654509088.

The previous prime is 111400342429. The next prime is 111400342433. The reversal of 111400342431 is 134243004111.

It is an interprime number because it is at equal distance from previous prime (111400342429) and next prime (111400342433).

It is not a de Polignac number, because 111400342431 - 2¹ = 111400342429 is a prime.

It is a super-2 number, since 2×111400342431² (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 (111400342433) 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, 423670 + ... + 634268.

It is an arithmetic number, because the mean of its divisors is an integer number (10610028000).

Almost surely, 2^111400342431 is an apocalyptic number.

111400342431 is a deficient number, since it is larger than the sum of its proper divisors (58360105569).

111400342431 is a wasteful number, since it uses less digits than its factorization.

111400342431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235798.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 111400342431 its reverse (134243004111), we get a palindrome (245643346542).

The spelling of 111400342431 in words is "one hundred eleven billion, four hundred million, three hundred forty-two thousand, four hundred thirty-one".