1140012444421 has 4 divisors (see below), whose sum is σ = 1152821573100. Its totient is φ = 1127203315744.

The previous prime is 1140012444407. The next prime is 1140012444427. The reversal of 1140012444421 is 1244442100411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 206829396225 + 933183048196 = 454785^2 + 966014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140012444421 - 2¹³ = 1140012436229 is a prime.

It is a super-2 number, since 2×1140012444421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140012444421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140012444427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6404564206 + ... + 6404564383.

It is an arithmetic number, because the mean of its divisors is an integer number (288205393275).

Almost surely, 2^{1140012444421} is an apocalyptic number.

It is an amenable number.

1140012444421 is a deficient number, since it is larger than the sum of its proper divisors (12809128679).

1140012444421 is an equidigital number, since it uses as much as digits as its factorization.

1140012444421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12809128678.

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 1140012444421 its reverse (1244442100411), we get a palindrome (2384454544832).

The spelling of 1140012444421 in words is "one trillion, one hundred forty billion, twelve million, four hundred forty-four thousand, four hundred twenty-one".