13123111332 has 24 divisors (see below), whose sum is σ = 31608355072. Its totient is φ = 4233261600.

The previous prime is 13123111283. The next prime is 13123111343. The reversal of 13123111332 is 23311132131.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13123111299 and 13123111308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17638219 + ... + 17638962.

Almost surely, 2^13123111332 is an apocalyptic number.

13123111332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13123111332 is an abundant number, since it is smaller than the sum of its proper divisors (18485243740).

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

13123111332 is a wasteful number, since it uses less digits than its factorization.

13123111332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35277219 (or 35277217 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

Adding to 13123111332 its reverse (23311132131), we get a palindrome (36434243463).

The spelling of 13123111332 in words is "thirteen billion, one hundred twenty-three million, one hundred eleven thousand, three hundred thirty-two".