111231003213 has 48 divisors (see below), whose sum is σ = 195350875200. Its totient is φ = 60107927040.

The previous prime is 111231003199. The next prime is 111231003223. The reversal of 111231003213 is 312300132111.

111231003213 is a `hidden beast` number, since 111 + 231 + 0 + 0 + 321 + 3 = 666.

It is not a de Polignac number, because 111231003213 - 2¹⁰ = 111231002189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111231003223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1707258 + ... + 1771211.

It is an arithmetic number, because the mean of its divisors is an integer number (4069809900).

Almost surely, 2^111231003213 is an apocalyptic number.

It is an amenable number.

111231003213 is a deficient number, since it is larger than the sum of its proper divisors (84119871987).

111231003213 is a wasteful number, since it uses less digits than its factorization.

111231003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478522 (or 3478519 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 111231003213 its reverse (312300132111), we get a palindrome (423531135324).

The spelling of 111231003213 in words is "one hundred eleven billion, two hundred thirty-one million, three thousand, two hundred thirteen".