3121142302 has 32 divisors (see below), whose sum is σ = 5147743104. Its totient is φ = 1413273600.

The previous prime is 3121142257. The next prime is 3121142309. The reversal of 3121142302 is 2032411213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3121142302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121142309) 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, 86427 + ... + 117097.

It is an arithmetic number, because the mean of its divisors is an integer number (160866972).

Almost surely, 2^3121142302 is an apocalyptic number.

3121142302 is a deficient number, since it is larger than the sum of its proper divisors (2026600802).

3121142302 is a wasteful number, since it uses less digits than its factorization.

3121142302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30804.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3121142302 is about 55867.1844824849. The cubic root of 3121142302 is about 1461.4070225923.

Adding to 3121142302 its reverse (2032411213), we get a palindrome (5153553515).

The spelling of 3121142302 in words is "three billion, one hundred twenty-one million, one hundred forty-two thousand, three hundred two".