31102313031121 has 8 divisors (see below), whose sum is σ = 31118504681664. Its totient is φ = 31086122002320.

The previous prime is 31102313031109. The next prime is 31102313031199. The reversal of 31102313031121 is 12113031320113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31102313031121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31102313031092 and 31102313031101.

It is not an unprimeable number, because it can be changed into a prime (31102313091121) 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, 126612906 + ... + 126858316.

It is an arithmetic number, because the mean of its divisors is an integer number (3889813085208).

Almost surely, 2^{31102313031121} is an apocalyptic number.

It is an amenable number.

31102313031121 is a deficient number, since it is larger than the sum of its proper divisors (16191650543).

31102313031121 is a wasteful number, since it uses less digits than its factorization.

31102313031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310871.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 31102313031121 its reverse (12113031320113), we get a palindrome (43215344351234).

The spelling of 31102313031121 in words is "thirty-one trillion, one hundred two billion, three hundred thirteen million, thirty-one thousand, one hundred twenty-one".