11143351474 has 4 divisors (see below), whose sum is σ = 16715027214. Its totient is φ = 5571675736.

The previous prime is 11143351451. The next prime is 11143351507. The reversal of 11143351474 is 47415334111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47415334111 = 41801 ⋅1134311.

It can be written as a sum of positive squares in only one way, i.e., 11142280249 + 1071225 = 105557^2 + 1035^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2785837867 + ... + 2785837870.

Almost surely, 2^11143351474 is an apocalyptic number.

11143351474 is a deficient number, since it is larger than the sum of its proper divisors (5571675740).

11143351474 is an equidigital number, since it uses as much as digits as its factorization.

11143351474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571675739.

The product of its digits is 20160, while the sum is 34.

Adding to 11143351474 its reverse (47415334111), we get a palindrome (58558685585).

The spelling of 11143351474 in words is "eleven billion, one hundred forty-three million, three hundred fifty-one thousand, four hundred seventy-four".