31330255255121 has 8 divisors (see below), whose sum is σ = 31420239719400. Its totient is φ = 31240272008448.

The previous prime is 31330255255099. The next prime is 31330255255207. The reversal of 31330255255121 is 12155255203313.

It can be written as a sum of positive squares in 4 ways, for example, as 343653888400 + 30986601366721 = 586220^2 + 5566561^2 .

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 31330255255121 - 2²² = 31330251060817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31330255555121) 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, 87586985 + ... + 87943961.

It is an arithmetic number, because the mean of its divisors is an integer number (3927529964925).

Almost surely, 2^{31330255255121} is an apocalyptic number.

It is an amenable number.

31330255255121 is a deficient number, since it is larger than the sum of its proper divisors (89984464279).

31330255255121 is a wasteful number, since it uses less digits than its factorization.

31330255255121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608803.

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 31330255255121 in words is "thirty-one trillion, three hundred thirty billion, two hundred fifty-five million, two hundred fifty-five thousand, one hundred twenty-one".