3121210121213 has 8 divisors (see below), whose sum is σ = 3140404397856. Its totient is φ = 3102016402800.

The previous prime is 3121210121209. The next prime is 3121210121251.

3121210121213 is nontrivially palindromic in base 10.

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 3121210121213 - 2² = 3121210121209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121210121413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19809323 + ... + 19966263.

It is an arithmetic number, because the mean of its divisors is an integer number (392550549732).

Almost surely, 2^{3121210121213} is an apocalyptic number.

It is an amenable number.

3121210121213 is a deficient number, since it is larger than the sum of its proper divisors (19194276643).

3121210121213 is a wasteful number, since it uses less digits than its factorization.

3121210121213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279115.

The product of its (nonzero) digits is 144, while the sum is 20.

It can be divided in two parts, 3121210 and 121213, that added together give a palindrome (3242423).

The spelling of 3121210121213 in words is "three trillion, one hundred twenty-one billion, two hundred ten million, one hundred twenty-one thousand, two hundred thirteen".