1268231441 has 4 divisors (see below), whose sum is σ = 1268319984. Its totient is φ = 1268142900.

The previous prime is 1268231423. The next prime is 1268231507. The reversal of 1268231441 is 1441328621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1441328621 = 3793 ⋅379997.

It is a cyclic number.

It is not a de Polignac number, because 1268231441 - 2²⁶ = 1201122577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1268231398 and 1268231407.

It is not an unprimeable number, because it can be changed into a prime (1268231401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17315 + ... + 53256.

It is an arithmetic number, because the mean of its divisors is an integer number (317079996).

Almost surely, 2^1268231441 is an apocalyptic number.

It is an amenable number.

1268231441 is a deficient number, since it is larger than the sum of its proper divisors (88543).

1268231441 is an equidigital number, since it uses as much as digits as its factorization.

1268231441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88542.

The product of its digits is 9216, while the sum is 32.

The square root of 1268231441 is about 35612.2372366579. The cubic root of 1268231441 is about 1082.4292144367.

The spelling of 1268231441 in words is "one billion, two hundred sixty-eight million, two hundred thirty-one thousand, four hundred forty-one".