1111240253 has 2 divisors, whose sum is σ = 1111240254. Its totient is φ = 1111240252.

The previous prime is 1111240231. The next prime is 1111240259. The reversal of 1111240253 is 3520421111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1067851684 + 43388569 = 32678^2 + 6587^2 .

It is an emirp because it is prime and its reverse (3520421111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111240253 - 2⁶ = 1111240189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111240259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555620126 + 555620127.

It is an arithmetic number, because the mean of its divisors is an integer number (555620127).

Almost surely, 2^1111240253 is an apocalyptic number.

It is an amenable number.

1111240253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111240253 is an equidigital number, since it uses as much as digits as its factorization.

1111240253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1111240253 is about 33335.2704053829. The cubic root of 1111240253 is about 1035.7842944843.

Adding to 1111240253 its reverse (3520421111), we get a palindrome (4631661364).

The spelling of 1111240253 in words is "one billion, one hundred eleven million, two hundred forty thousand, two hundred fifty-three".