31300313243121 has 24 divisors (see below), whose sum is σ = 48727090857536. Its totient is φ = 19246811124960.

The previous prime is 31300313243117. The next prime is 31300313243159. The reversal of 31300313243121 is 12134231300313.

31300313243121 is a `hidden beast` number, since 3 + 1 + 30 + 0 + 313 + 2 + 4 + 312 + 1 = 666.

It is not a de Polignac number, because 31300313243121 - 2² = 31300313243117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31300313243021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103460125 + ... + 103762218.

Almost surely, 2^{31300313243121} is an apocalyptic number.

It is an amenable number.

31300313243121 is a deficient number, since it is larger than the sum of its proper divisors (17426777614415).

31300313243121 is a wasteful number, since it uses less digits than its factorization.

31300313243121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207223653 (or 207223650 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31300313243121 its reverse (12134231300313), we get a palindrome (43434544543434).

The spelling of 31300313243121 in words is "thirty-one trillion, three hundred billion, three hundred thirteen million, two hundred forty-three thousand, one hundred twenty-one".