3121001203112 has 16 divisors (see below), whose sum is σ = 6302021660340. Its totient is φ = 1440462093696.

The previous prime is 3121001203057. The next prime is 3121001203141. The reversal of 3121001203112 is 2113021001213.

It can be written as a sum of positive squares in 2 ways, for example, as 2605686837796 + 515314365316 = 1614214^2 + 717854^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15004813373 + ... + 15004813580.

Almost surely, 2^{3121001203112} is an apocalyptic number.

It is an amenable number.

3121001203112 is an abundant number, since it is smaller than the sum of its proper divisors (3181020457228).

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

3121001203112 is a wasteful number, since it uses less digits than its factorization.

3121001203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30009626972 (or 30009626968 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 3121001203112 its reverse (2113021001213), we get a palindrome (5234022204325).

The spelling of 3121001203112 in words is "three trillion, one hundred twenty-one billion, one million, two hundred three thousand, one hundred twelve".