111430131 has 8 divisors (see below), whose sum is σ = 148635024. Its totient is φ = 74256000.

The previous prime is 111430129. The next prime is 111430141. The reversal of 111430131 is 131034111.

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

It is not a de Polignac number, because 111430131 - 2¹ = 111430129 is a prime.

It is a super-2 number, since 2×111430131² = 24833348189354322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111430131.

It is not an unprimeable number, because it can be changed into a prime (111430141) 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, 2815 + ... + 15191.

It is an arithmetic number, because the mean of its divisors is an integer number (18579378).

Almost surely, 2^111430131 is an apocalyptic number.

111430131 is a deficient number, since it is larger than the sum of its proper divisors (37204893).

111430131 is a wasteful number, since it uses less digits than its factorization.

111430131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15381.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 111430131 is about 10556.0471294893. The cubic root of 111430131 is about 481.2095234187.

Adding to 111430131 its reverse (131034111), we get a palindrome (242464242).

The spelling of 111430131 in words is "one hundred eleven million, four hundred thirty thousand, one hundred thirty-one".