1142353231 has 2 divisors, whose sum is σ = 1142353232. Its totient is φ = 1142353230.

The previous prime is 1142353217. The next prime is 1142353241. The reversal of 1142353231 is 1323532411.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1323532411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142353231 - 2¹⁹ = 1141828943 is a prime.

It is a super-2 number, since 2×1142353231² = 2609941808752278722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1142353196 and 1142353205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142353241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571176615 + 571176616.

It is an arithmetic number, because the mean of its divisors is an integer number (571176616).

Almost surely, 2^1142353231 is an apocalyptic number.

1142353231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142353231 is an equidigital number, since it uses as much as digits as its factorization.

1142353231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 1142353231 is about 33798.7164105384. The cubic root of 1142353231 is about 1045.3622305979.

Adding to 1142353231 its reverse (1323532411), we get a palindrome (2465885642).

The spelling of 1142353231 in words is "one billion, one hundred forty-two million, three hundred fifty-three thousand, two hundred thirty-one".