111311331021202 has 8 divisors (see below), whose sum is σ = 179810611649676. Its totient is φ = 51374460471312.

The previous prime is 111311331021193. The next prime is 111311331021203. The reversal of 111311331021202 is 202120133113111.

It can be written as a sum of positive squares in 2 ways, for example, as 109411788280081 + 1899542741121 = 10460009^2 + 1378239^2 .

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

It is not an unprimeable number, because it can be changed into a prime (111311331021203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2140602519613 + ... + 2140602519664.

Almost surely, 2^{111311331021202} is an apocalyptic number.

111311331021202 is a deficient number, since it is larger than the sum of its proper divisors (68499280628474).

111311331021202 is a wasteful number, since it uses less digits than its factorization.

111311331021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281205039292.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 111311331021202 its reverse (202120133113111), we get a palindrome (313431464134313).

The spelling of 111311331021202 in words is "one hundred eleven trillion, three hundred eleven billion, three hundred thirty-one million, twenty-one thousand, two hundred two".