1220432513233 has 2 divisors, whose sum is σ = 1220432513234. Its totient is φ = 1220432513232.

The previous prime is 1220432513221. The next prime is 1220432513299. The reversal of 1220432513233 is 3323152340221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 685438279744 + 534994233489 = 827912^2 + 731433^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220432513233 - 2²⁹ = 1219895642321 is a prime.

It is a super-3 number, since 3×1220432513233³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1220432513195 and 1220432513204.

It is not a weakly prime, because it can be changed into another prime (1220432513633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610216256616 + 610216256617.

It is an arithmetic number, because the mean of its divisors is an integer number (610216256617).

Almost surely, 2^{1220432513233} is an apocalyptic number.

It is an amenable number.

1220432513233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220432513233 is an equidigital number, since it uses as much as digits as its factorization.

1220432513233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 1220432513233 its reverse (3323152340221), we get a palindrome (4543584853454).

The spelling of 1220432513233 in words is "one trillion, two hundred twenty billion, four hundred thirty-two million, five hundred thirteen thousand, two hundred thirty-three".