11433354421 has 4 divisors (see below), whose sum is σ = 11440863072. Its totient is φ = 11425845772.

The previous prime is 11433354407. The next prime is 11433354433. The reversal of 11433354421 is 12445333411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12445333411 = 7 ⋅1777904773.

It is a cyclic number.

It is not a de Polignac number, because 11433354421 - 2¹³ = 11433346229 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 (11433354461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3752041 + ... + 3755086.

It is an arithmetic number, because the mean of its divisors is an integer number (2860215768).

Almost surely, 2^11433354421 is an apocalyptic number.

It is an amenable number.

11433354421 is a deficient number, since it is larger than the sum of its proper divisors (7508651).

11433354421 is an equidigital number, since it uses as much as digits as its factorization.

11433354421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7508650.

The product of its digits is 17280, while the sum is 31.

Adding to 11433354421 its reverse (12445333411), we get a palindrome (23878687832).

The spelling of 11433354421 in words is "eleven billion, four hundred thirty-three million, three hundred fifty-four thousand, four hundred twenty-one".