1240445411421 has 8 divisors (see below), whose sum is σ = 1654782850080. Its totient is φ = 826535790192.

The previous prime is 1240445411407. The next prime is 1240445411423. The reversal of 1240445411421 is 1241145440421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1240445411421 - 2⁶ = 1240445411357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240445411423) 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 7 ways as a sum of consecutive naturals, for example, 106947591 + ... + 106959188.

It is an arithmetic number, because the mean of its divisors is an integer number (206847856260).

Almost surely, 2^{1240445411421} is an apocalyptic number.

It is an amenable number.

1240445411421 is a deficient number, since it is larger than the sum of its proper divisors (414337438659).

1240445411421 is a wasteful number, since it uses less digits than its factorization.

1240445411421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213908715.

The product of its (nonzero) digits is 20480, while the sum is 33.

The spelling of 1240445411421 in words is "one trillion, two hundred forty billion, four hundred forty-five million, four hundred eleven thousand, four hundred twenty-one".