31113223030121 has 8 divisors (see below), whose sum is σ = 31969432059840. Its totient is φ = 30257819848368.

The previous prime is 31113223030117. The next prime is 31113223030147. The reversal of 31113223030121 is 12103032231113.

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

It is a cyclic number.

It is not a de Polignac number, because 31113223030121 - 2² = 31113223030117 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31113223035121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201383711 + ... + 201538148.

It is an arithmetic number, because the mean of its divisors is an integer number (3996179007480).

Almost surely, 2^{31113223030121} is an apocalyptic number.

It is an amenable number.

31113223030121 is a deficient number, since it is larger than the sum of its proper divisors (856209029719).

31113223030121 is a wasteful number, since it uses less digits than its factorization.

31113223030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402923983.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31113223030121 its reverse (12103032231113), we get a palindrome (43216255261234).

The spelling of 31113223030121 in words is "thirty-one trillion, one hundred thirteen billion, two hundred twenty-three million, thirty thousand, one hundred twenty-one".