1231025347 has 2 divisors, whose sum is σ = 1231025348. Its totient is φ = 1231025346.

The previous prime is 1231025317. The next prime is 1231025377. The reversal of 1231025347 is 7435201321.

It is a balanced prime because it is at equal distance from previous prime (1231025317) and next prime (1231025377).

It is a cyclic number.

It is not a de Polignac number, because 1231025347 - 2²³ = 1222636739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231025317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615512673 + 615512674.

It is an arithmetic number, because the mean of its divisors is an integer number (615512674).

Almost surely, 2^1231025347 is an apocalyptic number.

1231025347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231025347 is an equidigital number, since it uses as much as digits as its factorization.

1231025347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1231025347 is about 35085.9708003071. The cubic root of 1231025347 is about 1071.7389103312.

Adding to 1231025347 its reverse (7435201321), we get a palindrome (8666226668).

The spelling of 1231025347 in words is "one billion, two hundred thirty-one million, twenty-five thousand, three hundred forty-seven".