11321345452 has 24 divisors (see below), whose sum is σ = 20731636352. Its totient is φ = 5403024000.

The previous prime is 11321345443. The next prime is 11321345521. The reversal of 11321345452 is 25454312311.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616299 + ... + 634402.

Almost surely, 2^11321345452 is an apocalyptic number.

It is an amenable number.

11321345452 is a deficient number, since it is larger than the sum of its proper divisors (9410290900).

11321345452 is a wasteful number, since it uses less digits than its factorization.

11321345452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250809 (or 1250807 counting only the distinct ones).

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

Adding to 11321345452 its reverse (25454312311), we get a palindrome (36775657763).

The spelling of 11321345452 in words is "eleven billion, three hundred twenty-one million, three hundred forty-five thousand, four hundred fifty-two".