1231425467 has 2 divisors, whose sum is σ = 1231425468. Its totient is φ = 1231425466.

The previous prime is 1231425439. The next prime is 1231425469. The reversal of 1231425467 is 7645241321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231425467 - 2²⁴ = 1214648251 is a prime.

Together with 1231425469, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1231425469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615712733 + 615712734.

It is an arithmetic number, because the mean of its divisors is an integer number (615712734).

Almost surely, 2^1231425467 is an apocalyptic number.

1231425467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231425467 is an equidigital number, since it uses as much as digits as its factorization.

1231425467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 1231425467 is about 35091.6723311956. The cubic root of 1231425467 is about 1071.8550134702.

Adding to 1231425467 its reverse (7645241321), we get a palindrome (8876666788).

The spelling of 1231425467 in words is "one billion, two hundred thirty-one million, four hundred twenty-five thousand, four hundred sixty-seven".