12101231233 has 64 divisors (see below), whose sum is σ = 15966720000. Its totient is φ = 8905261824.

The previous prime is 12101231213. The next prime is 12101231237. The reversal of 12101231233 is 33213210121.

It is a cyclic number.

It is not a de Polignac number, because 12101231233 - 2¹³ = 12101223041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12101231233.

It is not an unprimeable number, because it can be changed into a prime (12101231237) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27565228 + ... + 27565666.

It is an arithmetic number, because the mean of its divisors is an integer number (249480000).

Almost surely, 2^12101231233 is an apocalyptic number.

12101231233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12101231233 is a deficient number, since it is larger than the sum of its proper divisors (3865488767).

12101231233 is a wasteful number, since it uses less digits than its factorization.

12101231233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12101231233 its reverse (33213210121), we get a palindrome (45314441354).

The spelling of 12101231233 in words is "twelve billion, one hundred one million, two hundred thirty-one thousand, two hundred thirty-three".