3121213302 has 24 divisors (see below), whose sum is σ = 6829589520. Its totient is φ = 1030102800.

The previous prime is 3121213289. The next prime is 3121213309. The reversal of 3121213302 is 2033121213.

3121213302 is a `hidden beast` number, since 312 + 1 + 21 + 330 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121213309) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 856602 + ... + 860237.

It is an arithmetic number, because the mean of its divisors is an integer number (284566230).

Almost surely, 2^3121213302 is an apocalyptic number.

3121213302 is an abundant number, since it is smaller than the sum of its proper divisors (3708376218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121213302 is a wasteful number, since it uses less digits than its factorization.

3121213302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716948 (or 1716945 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3121213302 is about 55867.8199145089. The cubic root of 3121213302 is about 1461.4181039104.

Adding to 3121213302 its reverse (2033121213), we get a palindrome (5154334515).

The spelling of 3121213302 in words is "three billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred two".