1231235063 has 2 divisors, whose sum is σ = 1231235064. Its totient is φ = 1231235062.

The previous prime is 1231235053. The next prime is 1231235101. The reversal of 1231235063 is 3605321321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1231235063 - 2⁶ = 1231234999 is a prime.

It is a super-2 number, since 2×1231235063² = 3031879560721227938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231235023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615617531 + 615617532.

It is an arithmetic number, because the mean of its divisors is an integer number (615617532).

Almost surely, 2^1231235063 is an apocalyptic number.

1231235063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231235063 is an equidigital number, since it uses as much as digits as its factorization.

1231235063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1231235063 is about 35088.9592749628. The cubic root of 1231235063 is about 1071.7997669268.

Adding to 1231235063 its reverse (3605321321), we get a palindrome (4836556384).

The spelling of 1231235063 in words is "one billion, two hundred thirty-one million, two hundred thirty-five thousand, sixty-three".