31232120213233 has 2 divisors, whose sum is σ = 31232120213234. Its totient is φ = 31232120213232.

The previous prime is 31232120213227. The next prime is 31232120213309. The reversal of 31232120213233 is 33231202123213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27842423134464 + 3389697078769 = 5276592^2 + 1841113^2 .

It is a cyclic number.

It is not a de Polignac number, because 31232120213233 - 2¹⁷ = 31232120082161 is a prime.

It is not a weakly prime, because it can be changed into another prime (31232120213213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616060106616 + 15616060106617.

It is an arithmetic number, because the mean of its divisors is an integer number (15616060106617).

Almost surely, 2^{31232120213233} is an apocalyptic number.

It is an amenable number.

31232120213233 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232120213233 is an equidigital number, since it uses as much as digits as its factorization.

31232120213233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 31232120213233 its reverse (33231202123213), we get a palindrome (64463322336446).

The spelling of 31232120213233 in words is "thirty-one trillion, two hundred thirty-two billion, one hundred twenty million, two hundred thirteen thousand, two hundred thirty-three".