2131514243 has 2 divisors, whose sum is σ = 2131514244. Its totient is φ = 2131514242.

The previous prime is 2131514233. The next prime is 2131514251. The reversal of 2131514243 is 3424151312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2131514243 - 2¹⁶ = 2131448707 is a prime.

It is a super-2 number, since 2×2131514243² = 9086705936223726098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2131514233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065757121 + 1065757122.

It is an arithmetic number, because the mean of its divisors is an integer number (1065757122).

Almost surely, 2^2131514243 is an apocalyptic number.

2131514243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131514243 is an equidigital number, since it uses as much as digits as its factorization.

2131514243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 2131514243 is about 46168.3251049895. The cubic root of 2131514243 is about 1286.9531770065.

Adding to 2131514243 its reverse (3424151312), we get a palindrome (5555665555).

The spelling of 2131514243 in words is "two billion, one hundred thirty-one million, five hundred fourteen thousand, two hundred forty-three".