11298566421 has 8 divisors (see below), whose sum is σ = 16738616960. Its totient is φ = 7532377596.

The previous prime is 11298566399. The next prime is 11298566423. The reversal of 11298566421 is 12466589211.

It is not a de Polignac number, because 11298566421 - 2¹⁷ = 11298435349 is a prime.

It is a super-3 number, since 3×11298566421³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11298566423) 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, 209232685 + ... + 209232738.

It is an arithmetic number, because the mean of its divisors is an integer number (2092327120).

Almost surely, 2^11298566421 is an apocalyptic number.

It is an amenable number.

11298566421 is a deficient number, since it is larger than the sum of its proper divisors (5440050539).

11298566421 is an equidigital number, since it uses as much as digits as its factorization.

11298566421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418465432 (or 418465426 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The spelling of 11298566421 in words is "eleven billion, two hundred ninety-eight million, five hundred sixty-six thousand, four hundred twenty-one".