11310123012 has 12 divisors (see below), whose sum is σ = 26390287056. Its totient is φ = 3770041000.

The previous prime is 11310123007. The next prime is 11310123043. The reversal of 11310123012 is 21032101311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11310122982 and 11310123000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471255114 + ... + 471255137.

It is an arithmetic number, because the mean of its divisors is an integer number (2199190588).

Almost surely, 2^11310123012 is an apocalyptic number.

11310123012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11310123012 is an abundant number, since it is smaller than the sum of its proper divisors (15080164044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11310123012 is a wasteful number, since it uses less digits than its factorization.

11310123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942510258 (or 942510256 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11310123012 its reverse (21032101311), we get a palindrome (32342224323).

The spelling of 11310123012 in words is "eleven billion, three hundred ten million, one hundred twenty-three thousand, twelve".