111203121102 has 8 divisors (see below), whose sum is σ = 222406242216. Its totient is φ = 37067707032.

The previous prime is 111203121079. The next prime is 111203121143. The reversal of 111203121102 is 201121302111.

It is a sphenic number, since it is the product of 3 distinct primes.

111203121102 is an admirable number.

It is a super-2 number, since 2×111203121102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9266926753 + ... + 9266926764.

It is an arithmetic number, because the mean of its divisors is an integer number (27800780277).

Almost surely, 2^111203121102 is an apocalyptic number.

111203121102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111203121102 is a wasteful number, since it uses less digits than its factorization.

111203121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18533853522.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111203121102 its reverse (201121302111), we get a palindrome (312324423213).

The spelling of 111203121102 in words is "one hundred eleven billion, two hundred three million, one hundred twenty-one thousand, one hundred two".