11432313421 has 4 divisors (see below), whose sum is σ = 11464699932. Its totient is φ = 11399926912.

The previous prime is 11432313383. The next prime is 11432313427. The reversal of 11432313421 is 12431323411.

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 7008201225 + 4424112196 = 83715^2 + 66514^2 .

It is a cyclic number.

It is not a de Polignac number, because 11432313421 - 2¹³ = 11432305229 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 (11432313427) 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, 16192726 + ... + 16193431.

It is an arithmetic number, because the mean of its divisors is an integer number (2866174983).

Almost surely, 2^11432313421 is an apocalyptic number.

It is an amenable number.

11432313421 is a deficient number, since it is larger than the sum of its proper divisors (32386511).

11432313421 is an equidigital number, since it uses as much as digits as its factorization.

11432313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32386510.

The product of its digits is 1728, while the sum is 25.

Adding to 11432313421 its reverse (12431323411), we get a palindrome (23863636832).

The spelling of 11432313421 in words is "eleven billion, four hundred thirty-two million, three hundred thirteen thousand, four hundred twenty-one".