2021313120004 has 6 divisors (see below), whose sum is σ = 3537297960014. Its totient is φ = 1010656560000.

The previous prime is 2021313119989. The next prime is 2021313120031. The reversal of 2021313120004 is 4000213131202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1582181591104 + 439131528900 = 1257848^2 + 662670^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252664139997 + ... + 252664140004.

Almost surely, 2^{2021313120004} is an apocalyptic number.

It is an amenable number.

2021313120004 is a deficient number, since it is larger than the sum of its proper divisors (1515984840010).

2021313120004 is a wasteful number, since it uses less digits than its factorization.

2021313120004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505328280005 (or 505328280003 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2021313120004 its reverse (4000213131202), we get a palindrome (6021526251206).

The spelling of 2021313120004 in words is "two trillion, twenty-one billion, three hundred thirteen million, one hundred twenty thousand, four".