111213102 has 64 divisors (see below), whose sum is σ = 298658304. Its totient is φ = 26663040.

The previous prime is 111213101. The next prime is 111213103. The reversal of 111213102 is 201312111.

It is an interprime number because it is at equal distance from previous prime (111213101) and next prime (111213103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3253 + ... + 15264.

It is an arithmetic number, because the mean of its divisors is an integer number (4666536).

Almost surely, 2^111213102 is an apocalyptic number.

111213102 is an abundant number, since it is smaller than the sum of its proper divisors (187445202).

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

111213102 is a wasteful number, since it uses less digits than its factorization.

111213102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18553.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 111213102 is about 10545.7622768579. The cubic root of 111213102 is about 480.8969081003.

Adding to 111213102 its reverse (201312111), we get a palindrome (312525213).

Subtracting 111213102 from its reverse (201312111), we obtain a palindrome (90099009).

The spelling of 111213102 in words is "one hundred eleven million, two hundred thirteen thousand, one hundred two".