111361214631 has 16 divisors (see below), whose sum is σ = 148854772224. Its totient is φ = 74054320704.

The previous prime is 111361214617. The next prime is 111361214641. The reversal of 111361214631 is 136412163111.

It is a de Polignac number, because none of the positive numbers 2^k-111361214631 is a prime.

It is a super-2 number, since 2×111361214631² (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 (111361214641) 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, 6858835 + ... + 6875051.

It is an arithmetic number, because the mean of its divisors is an integer number (9303423264).

Almost surely, 2^111361214631 is an apocalyptic number.

111361214631 is a deficient number, since it is larger than the sum of its proper divisors (37493557593).

111361214631 is a wasteful number, since it uses less digits than its factorization.

111361214631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21830.

The product of its digits is 2592, while the sum is 30.

Adding to 111361214631 its reverse (136412163111), we get a palindrome (247773377742).

The spelling of 111361214631 in words is "one hundred eleven billion, three hundred sixty-one million, two hundred fourteen thousand, six hundred thirty-one".