2231115251 has 2 divisors, whose sum is σ = 2231115252. Its totient is φ = 2231115250.

The previous prime is 2231115233. The next prime is 2231115259. The reversal of 2231115251 is 1525111322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2231115251 - 2¹⁴ = 2231098867 is a prime.

It is a super-3 number, since 3×2231115251³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231115259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115557625 + 1115557626.

It is an arithmetic number, because the mean of its divisors is an integer number (1115557626).

Almost surely, 2^2231115251 is an apocalyptic number.

2231115251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231115251 is an equidigital number, since it uses as much as digits as its factorization.

2231115251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 600, while the sum is 23.

The square root of 2231115251 is about 47234.6827130235. The cubic root of 2231115251 is about 1306.6943149852.

Adding to 2231115251 its reverse (1525111322), we get a palindrome (3756226573).

The spelling of 2231115251 in words is "two billion, two hundred thirty-one million, one hundred fifteen thousand, two hundred fifty-one".