1240550550421 has 32 divisors (see below), whose sum is σ = 1577921945600. Its totient is φ = 948764456640.

The previous prime is 1240550550383. The next prime is 1240550550431.

1240550550421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1240550550421 - 2¹³ = 1240550542229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240550550431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2167270 + ... + 2679208.

It is an arithmetic number, because the mean of its divisors is an integer number (49310060800).

Almost surely, 2^{1240550550421} is an apocalyptic number.

It is an amenable number.

1240550550421 is a deficient number, since it is larger than the sum of its proper divisors (337371395179).

1240550550421 is a wasteful number, since it uses less digits than its factorization.

1240550550421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512849.

The product of its (nonzero) digits is 40000, while the sum is 34.

It can be divided in two parts, 1240550 and 550421, that added together give a palindrome (1790971).

The spelling of 1240550550421 in words is "one trillion, two hundred forty billion, five hundred fifty million, five hundred fifty thousand, four hundred twenty-one".