3121232013000 has 384 divisors, whose sum is σ = 10810817297280. Its totient is φ = 811789171200.

The previous prime is 3121232012999. The next prime is 3121232013013. The reversal of 3121232013000 is 3102321213.

3121232013000 is a `hidden beast` number, since 3 + 1 + 212 + 320 + 130 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 283665499 + ... + 283676501.

It is an arithmetic number, because the mean of its divisors is an integer number (28153170045).

Almost surely, 2^{3121232013000} is an apocalyptic number.

3121232013000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3121232013000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5405408648640).

3121232013000 is an abundant number, since it is smaller than the sum of its proper divisors (7689585284280).

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

3121232013000 is a wasteful number, since it uses less digits than its factorization.

3121232013000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11806 (or 11789 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 3121232013000 its reverse (3102321213), we get a palindrome (3124334334213).

The spelling of 3121232013000 in words is "three trillion, one hundred twenty-one billion, two hundred thirty-two million, thirteen thousand".