12011451403 has 4 divisors (see below), whose sum is σ = 13727373040. Its totient is φ = 10295529768.

The previous prime is 12011451401. The next prime is 12011451409. The reversal of 12011451403 is 30415411021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12011451403 - 2¹ = 12011451401 is a prime.

It is a super-3 number, since 3×12011451403³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011451401) 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, 857960808 + ... + 857960821.

It is an arithmetic number, because the mean of its divisors is an integer number (3431843260).

Almost surely, 2^12011451403 is an apocalyptic number.

12011451403 is a deficient number, since it is larger than the sum of its proper divisors (1715921637).

12011451403 is an equidigital number, since it uses as much as digits as its factorization.

12011451403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715921636.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 12011451403 its reverse (30415411021), we get a palindrome (42426862424).

The spelling of 12011451403 in words is "twelve billion, eleven million, four hundred fifty-one thousand, four hundred three".