1232121201233 has 4 divisors (see below), whose sum is σ = 1326899755188. Its totient is φ = 1137342647280.

The previous prime is 1232121201197. The next prime is 1232121201247. The reversal of 1232121201233 is 3321021212321.

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 841637438464 + 390483762769 = 917408^2 + 624887^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232121201233 - 2¹⁰ = 1232121200209 is a prime.

It is a super-3 number, since 3×1232121201233³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232121201199 and 1232121201208.

It is not an unprimeable number, because it can be changed into a prime (1232127201233) 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, 47389276958 + ... + 47389276983.

It is an arithmetic number, because the mean of its divisors is an integer number (331724938797).

Almost surely, 2^{1232121201233} is an apocalyptic number.

1232121201233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1232121201233 is a deficient number, since it is larger than the sum of its proper divisors (94778553955).

1232121201233 is an equidigital number, since it uses as much as digits as its factorization.

1232121201233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94778553954.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1232121201233 its reverse (3321021212321), we get a palindrome (4553142413554).

The spelling of 1232121201233 in words is "one trillion, two hundred thirty-two billion, one hundred twenty-one million, two hundred one thousand, two hundred thirty-three".