2025121321 has 2 divisors, whose sum is σ = 2025121322. Its totient is φ = 2025121320.

The previous prime is 2025121279. The next prime is 2025121331. The reversal of 2025121321 is 1231215202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1345789225 + 679332096 = 36685^2 + 26064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2025121321 - 2¹⁷ = 2024990249 is a prime.

It is a super-2 number, since 2×2025121321² = 8202232729537570082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2025121331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012560660 + 1012560661.

It is an arithmetic number, because the mean of its divisors is an integer number (1012560661).

Almost surely, 2^2025121321 is an apocalyptic number.

It is an amenable number.

2025121321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2025121321 is an equidigital number, since it uses as much as digits as its factorization.

2025121321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2025121321 is about 45001.3479909213. The cubic root of 2025121321 is about 1265.1742631504.

Adding to 2025121321 its reverse (1231215202), we get a palindrome (3256336523).

The spelling of 2025121321 in words is "two billion, twenty-five million, one hundred twenty-one thousand, three hundred twenty-one".