3121653001255 has 8 divisors (see below), whose sum is σ = 3753430888032. Its totient is φ = 2492357543328.

The previous prime is 3121653001249. The next prime is 3121653001267. The reversal of 3121653001255 is 5521003561213.

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 3121653001255 - 2⁵ = 3121653001223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3121653001255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620604444 + ... + 620609473.

It is an arithmetic number, because the mean of its divisors is an integer number (469178861004).

Almost surely, 2^{3121653001255} is an apocalyptic number.

3121653001255 is a deficient number, since it is larger than the sum of its proper divisors (631777886777).

3121653001255 is a wasteful number, since it uses less digits than its factorization.

3121653001255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241214425.

The product of its (nonzero) digits is 27000, while the sum is 34.

Adding to 3121653001255 its reverse (5521003561213), we get a palindrome (8642656562468).

The spelling of 3121653001255 in words is "three trillion, one hundred twenty-one billion, six hundred fifty-three million, one thousand, two hundred fifty-five".