11231013012 has 24 divisors (see below), whose sum is σ = 27584944800. Its totient is φ = 3546635616.

The previous prime is 11231013011. The next prime is 11231013047. The reversal of 11231013012 is 21031013211.

It is a happy number.

11231013012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11231013012² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11231012982 and 11231013000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231013011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24629187 + ... + 24629642.

It is an arithmetic number, because the mean of its divisors is an integer number (1149372700).

Almost surely, 2^11231013012 is an apocalyptic number.

11231013012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11231013012 is an abundant number, since it is smaller than the sum of its proper divisors (16353931788).

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

11231013012 is a wasteful number, since it uses less digits than its factorization.

11231013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49258855 (or 49258853 counting only the distinct ones).

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

Adding to 11231013012 its reverse (21031013211), we get a palindrome (32262026223).

The spelling of 11231013012 in words is "eleven billion, two hundred thirty-one million, thirteen thousand, twelve".