1142310251 has 2 divisors, whose sum is σ = 1142310252. Its totient is φ = 1142310250.

The previous prime is 1142310173. The next prime is 1142310271. The reversal of 1142310251 is 1520132411.

It is an a-pointer prime, because the next prime (1142310271) can be obtained adding 1142310251 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1142310251 - 2¹⁰ = 1142309227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1142310271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571155125 + 571155126.

It is an arithmetic number, because the mean of its divisors is an integer number (571155126).

Almost surely, 2^1142310251 is an apocalyptic number.

1142310251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142310251 is an equidigital number, since it uses as much as digits as its factorization.

1142310251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1142310251 is about 33798.0805815952. The cubic root of 1142310251 is about 1045.3491201661.

Adding to 1142310251 its reverse (1520132411), we get a palindrome (2662442662).

The spelling of 1142310251 in words is "one billion, one hundred forty-two million, three hundred ten thousand, two hundred fifty-one".