1232111013 has 32 divisors (see below), whose sum is σ = 1910587392. Its totient is φ = 691752000.

The previous prime is 1232111003. The next prime is 1232111021. The reversal of 1232111013 is 3101112321.

It is a happy number.

It is not a de Polignac number, because 1232111013 - 2¹² = 1232106917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1232110983 and 1232111001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232111003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331063 + ... + 334763.

It is an arithmetic number, because the mean of its divisors is an integer number (59705856).

Almost surely, 2^1232111013 is an apocalyptic number.

It is an amenable number.

1232111013 is a deficient number, since it is larger than the sum of its proper divisors (678476379).

1232111013 is a wasteful number, since it uses less digits than its factorization.

1232111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985.

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

The square root of 1232111013 is about 35101.4389021305. The cubic root of 1232111013 is about 1072.0538804530.

Adding to 1232111013 its reverse (3101112321), we get a palindrome (4333223334).

The spelling of 1232111013 in words is "one billion, two hundred thirty-two million, one hundred eleven thousand, thirteen".