2120253431 has 2 divisors, whose sum is σ = 2120253432. Its totient is φ = 2120253430.

The previous prime is 2120253397. The next prime is 2120253437. The reversal of 2120253431 is 1343520212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120253431 - 2²⁶ = 2053144567 is a prime.

It is a super-2 number, since 2×2120253431² = 8990949223334543522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120253397 and 2120253406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120253437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060126715 + 1060126716.

It is an arithmetic number, because the mean of its divisors is an integer number (1060126716).

Almost surely, 2^2120253431 is an apocalyptic number.

2120253431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120253431 is an equidigital number, since it uses as much as digits as its factorization.

2120253431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2120253431 is about 46046.2097354386. The cubic root of 2120253431 is about 1284.6828452146.

Adding to 2120253431 its reverse (1343520212), we get a palindrome (3463773643).

The spelling of 2120253431 in words is "two billion, one hundred twenty million, two hundred fifty-three thousand, four hundred thirty-one".