3121023201000 has 128 divisors (see below), whose sum is σ = 10250097436800. Its totient is φ = 788469004800.

The previous prime is 3121023200983. The next prime is 3121023201029. The reversal of 3121023201000 is 1023201213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27320397 + ... + 27434396.

It is an arithmetic number, because the mean of its divisors is an integer number (80078886225).

Almost surely, 2^{3121023201000} is an apocalyptic number.

3121023201000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3121023201000 is an abundant number, since it is smaller than the sum of its proper divisors (7129074235800).

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

3121023201000 is a wasteful number, since it uses less digits than its factorization.

3121023201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54754836 (or 54754822 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 3121023201000 its reverse (1023201213), we get a palindrome (3122046402213).

The spelling of 3121023201000 in words is "three trillion, one hundred twenty-one billion, twenty-three million, two hundred one thousand".