2021333023253 has 2 divisors, whose sum is σ = 2021333023254. Its totient is φ = 2021333023252.

The previous prime is 2021333023249. The next prime is 2021333023273. The reversal of 2021333023253 is 3523203331202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1945224352369 + 76108670884 = 1394713^2 + 275878^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021333023253 - 2² = 2021333023249 is a prime.

It is a super-2 number, since 2×2021333023253² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021333023273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010666511626 + 1010666511627.

It is an arithmetic number, because the mean of its divisors is an integer number (1010666511627).

Almost surely, 2^{2021333023253} is an apocalyptic number.

It is an amenable number.

2021333023253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021333023253 is an equidigital number, since it uses as much as digits as its factorization.

2021333023253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 29.

Adding to 2021333023253 its reverse (3523203331202), we get a palindrome (5544536354455).

The spelling of 2021333023253 in words is "two trillion, twenty-one billion, three hundred thirty-three million, twenty-three thousand, two hundred fifty-three".