31113302302121 has 16 divisors (see below), whose sum is σ = 34007510234880. Its totient is φ = 28291618465920.

The previous prime is 31113302302081. The next prime is 31113302302219. The reversal of 31113302302121 is 12120320331113.

It is a cyclic number.

It is not a de Polignac number, because 31113302302121 - 2¹⁰ = 31113302301097 is a prime.

It is a super-2 number, since 2×31113302302121² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31113302302021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19443281 + ... + 20982558.

It is an arithmetic number, because the mean of its divisors is an integer number (2125469389680).

Almost surely, 2^{31113302302121} is an apocalyptic number.

It is an amenable number.

31113302302121 is a deficient number, since it is larger than the sum of its proper divisors (2894207932759).

31113302302121 is a wasteful number, since it uses less digits than its factorization.

31113302302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40426736.

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

Adding to 31113302302121 its reverse (12120320331113), we get a palindrome (43233622633234).

The spelling of 31113302302121 in words is "thirty-one trillion, one hundred thirteen billion, three hundred two million, three hundred two thousand, one hundred twenty-one".