11506433403 has 4 divisors (see below), whose sum is σ = 15341911208. Its totient is φ = 7670955600.

The previous prime is 11506433377. The next prime is 11506433423. The reversal of 11506433403 is 30433460511.

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

It is not a de Polignac number, because 11506433403 - 2¹⁷ = 11506302331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11506433423) 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, 1917738898 + ... + 1917738903.

It is an arithmetic number, because the mean of its divisors is an integer number (3835477802).

Almost surely, 2^11506433403 is an apocalyptic number.

11506433403 is a deficient number, since it is larger than the sum of its proper divisors (3835477805).

11506433403 is an equidigital number, since it uses as much as digits as its factorization.

11506433403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835477804.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 11506433403 its reverse (30433460511), we get a palindrome (41939893914).

The spelling of 11506433403 in words is "eleven billion, five hundred six million, four hundred thirty-three thousand, four hundred three".