1263263231 has 2 divisors, whose sum is σ = 1263263232. Its totient is φ = 1263263230.

The previous prime is 1263263161. The next prime is 1263263269. The reversal of 1263263231 is 1323623621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1263263231 - 2¹⁰ = 1263262207 is a prime.

It is a super-2 number, since 2×1263263231² = 3191667981593118722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1263263194 and 1263263203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263263531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631631615 + 631631616.

It is an arithmetic number, because the mean of its divisors is an integer number (631631616).

Almost surely, 2^1263263231 is an apocalyptic number.

1263263231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263263231 is an equidigital number, since it uses as much as digits as its factorization.

1263263231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

The square root of 1263263231 is about 35542.4145353126. The cubic root of 1263263231 is about 1081.0139172229.

Adding to 1263263231 its reverse (1323623621), we get a palindrome (2586886852).

The spelling of 1263263231 in words is "one billion, two hundred sixty-three million, two hundred sixty-three thousand, two hundred thirty-one".