3121001313331 has 16 divisors (see below), whose sum is σ = 3407982852960. Its totient is φ = 2834562769920.

The previous prime is 3121001313329. The next prime is 3121001313379. The reversal of 3121001313331 is 1333131001213.

3121001313331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3121001313331 - 2¹ = 3121001313329 is a prime.

It is a super-2 number, since 2×3121001313331² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121001311331) 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, 187180611 + ... + 187197283.

It is an arithmetic number, because the mean of its divisors is an integer number (212998928310).

Almost surely, 2^{3121001313331} is an apocalyptic number.

3121001313331 is a deficient number, since it is larger than the sum of its proper divisors (286981539629).

3121001313331 is a wasteful number, since it uses less digits than its factorization.

3121001313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31926.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 3121001313331 its reverse (1333131001213), we get a palindrome (4454132314544).

The spelling of 3121001313331 in words is "three trillion, one hundred twenty-one billion, one million, three hundred thirteen thousand, three hundred thirty-one".