1231425353 has 2 divisors, whose sum is σ = 1231425354. Its totient is φ = 1231425352.

The previous prime is 1231425343. The next prime is 1231425389. The reversal of 1231425353 is 3535241321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 774620224 + 456805129 = 27832^2 + 21373^2 .

It is an emirp because it is prime and its reverse (3535241321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1231425353 - 2¹⁸ = 1231163209 is a prime.

It is a super-2 number, since 2×1231425353² = 3032816800022349218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1231425343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615712676 + 615712677.

It is an arithmetic number, because the mean of its divisors is an integer number (615712677).

Almost surely, 2^1231425353 is an apocalyptic number.

It is an amenable number.

1231425353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231425353 is an equidigital number, since it uses as much as digits as its factorization.

1231425353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 29.

The square root of 1231425353 is about 35091.6707068786. The cubic root of 1231425353 is about 1071.8549803943.

Adding to 1231425353 its reverse (3535241321), we get a palindrome (4766666674).

The spelling of 1231425353 in words is "one billion, two hundred thirty-one million, four hundred twenty-five thousand, three hundred fifty-three".