11423015012 has 6 divisors (see below), whose sum is σ = 19990276278. Its totient is φ = 5711507504.

The previous prime is 11423014991. The next prime is 11423015063. The reversal of 11423015012 is 21051032411.

It can be written as a sum of positive squares in only one way, i.e., 6474455296 + 4948559716 = 80464^2 + 70346^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427876873 + ... + 1427876880.

It is an arithmetic number, because the mean of its divisors is an integer number (3331712713).

Almost surely, 2^11423015012 is an apocalyptic number.

It is an amenable number.

11423015012 is a deficient number, since it is larger than the sum of its proper divisors (8567261266).

11423015012 is a wasteful number, since it uses less digits than its factorization.

11423015012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855753757 (or 2855753755 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 11423015012 its reverse (21051032411), we get a palindrome (32474047423).

The spelling of 11423015012 in words is "eleven billion, four hundred twenty-three million, fifteen thousand, twelve".