32131312121 has 2 divisors, whose sum is σ = 32131312122. Its totient is φ = 32131312120.

The previous prime is 32131312069. The next prime is 32131312193. The reversal of 32131312121 is 12121313123.

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., 25348142521 + 6783169600 = 159211^2 + 82360^2 .

It is a cyclic number.

It is not a de Polignac number, because 32131312121 - 2¹⁰ = 32131311097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32131312093 and 32131312102.

It is not a weakly prime, because it can be changed into another prime (32131312921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16065656060 + 16065656061.

It is an arithmetic number, because the mean of its divisors is an integer number (16065656061).

Almost surely, 2^32131312121 is an apocalyptic number.

It is an amenable number.

32131312121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32131312121 is an equidigital number, since it uses as much as digits as its factorization.

32131312121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

Adding to 32131312121 its reverse (12121313123), we get a palindrome (44252625244).

The spelling of 32131312121 in words is "thirty-two billion, one hundred thirty-one million, three hundred twelve thousand, one hundred twenty-one".