1231442363 has 2 divisors, whose sum is σ = 1231442364. Its totient is φ = 1231442362.

The previous prime is 1231442321. The next prime is 1231442393. The reversal of 1231442363 is 3632441321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231442363 - 2¹⁸ = 1231180219 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231442393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615721181 + 615721182.

It is an arithmetic number, because the mean of its divisors is an integer number (615721182).

Almost surely, 2^1231442363 is an apocalyptic number.

1231442363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231442363 is an equidigital number, since it uses as much as digits as its factorization.

1231442363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

The square root of 1231442363 is about 35091.9130712476. The cubic root of 1231442363 is about 1071.8599156425.

Adding to 1231442363 its reverse (3632441321), we get a palindrome (4863883684).

The spelling of 1231442363 in words is "one billion, two hundred thirty-one million, four hundred forty-two thousand, three hundred sixty-three".