3121131301242 has 16 divisors (see below), whose sum is σ = 6248213294400. Its totient is φ = 1039385318432.

The previous prime is 3121131301213. The next prime is 3121131301279. The reversal of 3121131301242 is 2421031311213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247938678 + ... + 247951265.

It is an arithmetic number, because the mean of its divisors is an integer number (390513330900).

Almost surely, 2^{3121131301242} is an apocalyptic number.

3121131301242 is an abundant number, since it is smaller than the sum of its proper divisors (3127081993158).

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

3121131301242 is a wasteful number, since it uses less digits than its factorization.

3121131301242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495890997.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 3121131301242 its reverse (2421031311213), we get a palindrome (5542162612455).

The spelling of 3121131301242 in words is "three trillion, one hundred twenty-one billion, one hundred thirty-one million, three hundred one thousand, two hundred forty-two".