111212102313 has 36 divisors (see below), whose sum is σ = 175198885680. Its totient is φ = 67945726368.

The previous prime is 111212102311. The next prime is 111212102327. The reversal of 111212102313 is 313201212111.

It is not a de Polignac number, because 111212102313 - 2¹ = 111212102311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111212102311) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51595 + ... + 474432.

Almost surely, 2^111212102313 is an apocalyptic number.

111212102313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111212102313 is a deficient number, since it is larger than the sum of its proper divisors (63986783367).

111212102313 is a wasteful number, since it uses less digits than its factorization.

111212102313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526198 (or 526182 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111212102313 its reverse (313201212111), we get a palindrome (424413314424).

The spelling of 111212102313 in words is "one hundred eleven billion, two hundred twelve million, one hundred two thousand, three hundred thirteen".