11323123012 has 48 divisors (see below), whose sum is σ = 20646138240. Its totient is φ = 5429318400.

The previous prime is 11323122991. The next prime is 11323123039. The reversal of 11323123012 is 21032132311.

It is a super-2 number, since 2×11323123012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7262289 + ... + 7263847.

It is an arithmetic number, because the mean of its divisors is an integer number (430127880).

Almost surely, 2^11323123012 is an apocalyptic number.

It is an amenable number.

11323123012 is a deficient number, since it is larger than the sum of its proper divisors (9323015228).

11323123012 is a wasteful number, since it uses less digits than its factorization.

11323123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11323123012 its reverse (21032132311), we get a palindrome (32355255323).

The spelling of 11323123012 in words is "eleven billion, three hundred twenty-three million, one hundred twenty-three thousand, twelve".