1231023067 has 2 divisors, whose sum is σ = 1231023068. Its totient is φ = 1231023066.

The previous prime is 1231023007. The next prime is 1231023133. The reversal of 1231023067 is 7603201321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1231023067 - 2²³ = 1222634459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231023007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615511533 + 615511534.

It is an arithmetic number, because the mean of its divisors is an integer number (615511534).

Almost surely, 2^1231023067 is an apocalyptic number.

1231023067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231023067 is an equidigital number, since it uses as much as digits as its factorization.

1231023067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1231023067 is about 35085.9383086729. The cubic root of 1231023067 is about 1071.7382486697.

Adding to 1231023067 its reverse (7603201321), we get a palindrome (8834224388).

The spelling of 1231023067 in words is "one billion, two hundred thirty-one million, twenty-three thousand, sixty-seven".