1241256223 has 2 divisors, whose sum is σ = 1241256224. Its totient is φ = 1241256222.

The previous prime is 1241256199. The next prime is 1241256227. The reversal of 1241256223 is 3226521421.

It is a strong prime.

It is an emirp because it is prime and its reverse (3226521421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241256223 is a prime.

It is a super-2 number, since 2×1241256223² = 3081434022272451458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1241256191 and 1241256200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241256227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620628111 + 620628112.

It is an arithmetic number, because the mean of its divisors is an integer number (620628112).

Almost surely, 2^1241256223 is an apocalyptic number.

1241256223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241256223 is an equidigital number, since it uses as much as digits as its factorization.

1241256223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 28.

The square root of 1241256223 is about 35231.4663759543. The cubic root of 1241256223 is about 1074.6997461073.

Adding to 1241256223 its reverse (3226521421), we get a palindrome (4467777644).

It can be divided in two parts, 12412 and 56223, that added together give a triangular number (68635 = T₃₇₀).

The spelling of 1241256223 in words is "one billion, two hundred forty-one million, two hundred fifty-six thousand, two hundred twenty-three".