12131010233233 has 4 divisors (see below), whose sum is σ = 12844599070500. Its totient is φ = 11417421395968.

The previous prime is 12131010233231. The next prime is 12131010233269. The reversal of 12131010233233 is 33233201013121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3260072191489 + 8870938041744 = 1805567^2 + 2978412^2 .

It is a cyclic number.

It is not a de Polignac number, because 12131010233233 - 2¹ = 12131010233231 is a prime.

It is a super-2 number, since 2×12131010233233² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12131010233198 and 12131010233207.

It is not an unprimeable number, because it can be changed into a prime (12131010233231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356794418608 + ... + 356794418641.

It is an arithmetic number, because the mean of its divisors is an integer number (3211149767625).

Almost surely, 2^{12131010233233} is an apocalyptic number.

It is an amenable number.

12131010233233 is a deficient number, since it is larger than the sum of its proper divisors (713588837267).

12131010233233 is an equidigital number, since it uses as much as digits as its factorization.

12131010233233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713588837266.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 12131010233233 its reverse (33233201013121), we get a palindrome (45364211246354).

The spelling of 12131010233233 in words is "twelve trillion, one hundred thirty-one billion, ten million, two hundred thirty-three thousand, two hundred thirty-three".