1240411223553 has 4 divisors (see below), whose sum is σ = 1653881631408. Its totient is φ = 826940815700.

The previous prime is 1240411223399. The next prime is 1240411223573. The reversal of 1240411223553 is 3553221140421.

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.

It is a cyclic number.

It is not a de Polignac number, because 1240411223553 - 2⁹ = 1240411223041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240411223573) 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, 206735203923 + ... + 206735203928.

It is an arithmetic number, because the mean of its divisors is an integer number (413470407852).

Almost surely, 2^{1240411223553} is an apocalyptic number.

It is an amenable number.

1240411223553 is a deficient number, since it is larger than the sum of its proper divisors (413470407855).

1240411223553 is an equidigital number, since it uses as much as digits as its factorization.

1240411223553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413470407854.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1240411223553 its reverse (3553221140421), we get a palindrome (4793632363974).

The spelling of 1240411223553 in words is "one trillion, two hundred forty billion, four hundred eleven million, two hundred twenty-three thousand, five hundred fifty-three".