31113113223202 has 8 divisors (see below), whose sum is σ = 46750553146476. Its totient is φ = 15529595507712.

The previous prime is 31113113223191. The next prime is 31113113223263. The reversal of 31113113223202 is 20232231131113.

It can be written as a sum of positive squares in 2 ways, for example, as 20199280798321 + 10913832424881 = 4494361^2 + 3303609^2 .

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

It is a super-2 number, since 2×31113113223202² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13480550503 + ... + 13480552810.

Almost surely, 2^{31113113223202} is an apocalyptic number.

31113113223202 is a deficient number, since it is larger than the sum of its proper divisors (15637439923274).

31113113223202 is a wasteful number, since it uses less digits than its factorization.

31113113223202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26961103892.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31113113223202 its reverse (20232231131113), we get a palindrome (51345344354315).

The spelling of 31113113223202 in words is "thirty-one trillion, one hundred thirteen billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred two".