11961263 has 2 divisors, whose sum is σ = 11961264. Its totient is φ = 11961262.

The previous prime is 11961259. The next prime is 11961283. The reversal of 11961263 is 36216911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11961263 - 2² = 11961259 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11961223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5980631 + 5980632.

It is an arithmetic number, because the mean of its divisors is an integer number (5980632).

Almost surely, 2^11961263 is an apocalyptic number.

11961263 is a deficient number, since it is larger than the sum of its proper divisors (1).

11961263 is an equidigital number, since it uses as much as digits as its factorization.

11961263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 11961263 is about 3458.5058912773. The cubic root of 11961263 is about 228.6962340915.

The spelling of 11961263 in words is "eleven million, nine hundred sixty-one thousand, two hundred sixty-three".