3121230002000 has 80 divisors (see below), whose sum is σ = 8233237306944. Its totient is φ = 1134992720000.

The previous prime is 3121230001999. The next prime is 3121230002021. The reversal of 3121230002000 is 2000321213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70915046 + ... + 70959045.

Almost surely, 2^{3121230002000} is an apocalyptic number.

It is an amenable number.

3121230002000 is an abundant number, since it is smaller than the sum of its proper divisors (5112007304944).

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

3121230002000 is a wasteful number, since it uses less digits than its factorization.

3121230002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141874125 (or 141874109 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 3121230002000 its reverse (2000321213), we get a palindrome (3123230323213).

The spelling of 3121230002000 in words is "three trillion, one hundred twenty-one billion, two hundred thirty million, two thousand".