1334554240021 has 4 divisors (see below), whose sum is σ = 1356432178444. Its totient is φ = 1312676301600.

The previous prime is 1334554239989. The next prime is 1334554240027. The reversal of 1334554240021 is 1200424554331.

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 142854517521 + 1191699722500 = 377961^2 + 1091650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1334554240021 - 2⁵ = 1334554239989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1334554240027) 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 3 ways as a sum of consecutive naturals, for example, 10938969120 + ... + 10938969241.

It is an arithmetic number, because the mean of its divisors is an integer number (339108044611).

Almost surely, 2^{1334554240021} is an apocalyptic number.

It is an amenable number.

1334554240021 is a deficient number, since it is larger than the sum of its proper divisors (21877938423).

1334554240021 is an equidigital number, since it uses as much as digits as its factorization.

1334554240021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21877938422.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1334554240021 its reverse (1200424554331), we get a palindrome (2534978794352).

The spelling of 1334554240021 in words is "one trillion, three hundred thirty-four billion, five hundred fifty-four million, two hundred forty thousand, twenty-one".