1243304033421 has 8 divisors (see below), whose sum is σ = 1685835977760. Its totient is φ = 814820722352.

The previous prime is 1243304033401. The next prime is 1243304033437.

It is a happy number.

1243304033421 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 1243304033421 - 2⁶ = 1243304033357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243304033401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3512158110 + ... + 3512158463.

It is an arithmetic number, because the mean of its divisors is an integer number (210729497220).

Almost surely, 2^{1243304033421} is an apocalyptic number.

It is an amenable number.

1243304033421 is a deficient number, since it is larger than the sum of its proper divisors (442531944339).

1243304033421 is an equidigital number, since it uses as much as digits as its factorization.

1243304033421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024316635.

The product of its (nonzero) digits is 20736, while the sum is 30.

The spelling of 1243304033421 in words is "one trillion, two hundred forty-three billion, three hundred four million, thirty-three thousand, four hundred twenty-one".