11430123012 has 72 divisors (see below), whose sum is σ = 36022214592. Its totient is φ = 2968862400.

The previous prime is 11430123007. The next prime is 11430123071. The reversal of 11430123012 is 21032103411.

11430123012 is a `hidden beast` number, since 1 + 1 + 430 + 1 + 230 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2058939 + ... + 2064482.

It is an arithmetic number, because the mean of its divisors is an integer number (500308536).

Almost surely, 2^11430123012 is an apocalyptic number.

11430123012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11430123012 is an abundant number, since it is smaller than the sum of its proper divisors (24592091580).

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

11430123012 is a wasteful number, since it uses less digits than its factorization.

11430123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123449 (or 4123444 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11430123012 its reverse (21032103411), we get a palindrome (32462226423).

The spelling of 11430123012 in words is "eleven billion, four hundred thirty million, one hundred twenty-three thousand, twelve".