11352453421 has 4 divisors (see below), whose sum is σ = 11420432352. Its totient is φ = 11284474492.

The previous prime is 11352453403. The next prime is 11352453451. The reversal of 11352453421 is 12435425311.

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.

It is a cyclic number.

It is not a de Polignac number, because 11352453421 - 2⁵ = 11352453389 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 (11352453451) 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, 33989215 + ... + 33989548.

It is an arithmetic number, because the mean of its divisors is an integer number (2855108088).

Almost surely, 2^11352453421 is an apocalyptic number.

It is an amenable number.

11352453421 is a deficient number, since it is larger than the sum of its proper divisors (67978931).

11352453421 is an equidigital number, since it uses as much as digits as its factorization.

11352453421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67978930.

The product of its digits is 14400, while the sum is 31.

Adding to 11352453421 its reverse (12435425311), we get a palindrome (23787878732).

The spelling of 11352453421 in words is "eleven billion, three hundred fifty-two million, four hundred fifty-three thousand, four hundred twenty-one".