2141231251 has 2 divisors, whose sum is σ = 2141231252. Its totient is φ = 2141231250.

The previous prime is 2141231233. The next prime is 2141231291. The reversal of 2141231251 is 1521321412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2141231251 - 2⁵ = 2141231219 is a prime.

It is not a weakly prime, because it can be changed into another prime (2141231221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070615625 + 1070615626.

It is an arithmetic number, because the mean of its divisors is an integer number (1070615626).

Almost surely, 2^2141231251 is an apocalyptic number.

2141231251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141231251 is an equidigital number, since it uses as much as digits as its factorization.

2141231251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 22.

The square root of 2141231251 is about 46273.4400169255. The cubic root of 2141231251 is about 1288.9058388298.

Adding to 2141231251 its reverse (1521321412), we get a palindrome (3662552663).

The spelling of 2141231251 in words is "two billion, one hundred forty-one million, two hundred thirty-one thousand, two hundred fifty-one".