111531263214 has 48 divisors (see below), whose sum is σ = 270806537088. Its totient is φ = 29991596928.

The previous prime is 111531263213. The next prime is 111531263237. The reversal of 111531263214 is 412362135111.

It is a super-2 number, since 2×111531263214² (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 (111531263213) 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, 4582164 + ... + 4606439.

It is an arithmetic number, because the mean of its divisors is an integer number (5641802856).

Almost surely, 2^111531263214 is an apocalyptic number.

111531263214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

111531263214 is an abundant number, since it is smaller than the sum of its proper divisors (159275273874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111531263214 is a wasteful number, since it uses less digits than its factorization.

111531263214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9188649 (or 9188632 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

Adding to 111531263214 its reverse (412362135111), we get a palindrome (523893398325).

The spelling of 111531263214 in words is "one hundred eleven billion, five hundred thirty-one million, two hundred sixty-three thousand, two hundred fourteen".