3121243130 has 16 divisors (see below), whose sum is σ = 5633068320. Its totient is φ = 1245201552.

The previous prime is 3121243127. The next prime is 3121243159. The reversal of 3121243130 is 313421213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407984 + ... + 415563.

It is an arithmetic number, because the mean of its divisors is an integer number (352066770).

Almost surely, 2^3121243130 is an apocalyptic number.

3121243130 is a deficient number, since it is larger than the sum of its proper divisors (2511825190).

3121243130 is a wasteful number, since it uses less digits than its factorization.

3121243130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823933.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3121243130 is about 55868.0868654011. The cubic root of 3121243130 is about 1461.4227592625.

Adding to 3121243130 its reverse (313421213), we get a palindrome (3434664343).

The spelling of 3121243130 in words is "three billion, one hundred twenty-one million, two hundred forty-three thousand, one hundred thirty".