32101213121 has 2 divisors, whose sum is σ = 32101213122. Its totient is φ = 32101213120.

The previous prime is 32101213103. The next prime is 32101213147. The reversal of 32101213121 is 12131210123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30218954896 + 1882258225 = 173836^2 + 43385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32101213121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32101213121.

It is not a weakly prime, because it can be changed into another prime (32101219121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16050606560 + 16050606561.

It is an arithmetic number, because the mean of its divisors is an integer number (16050606561).

Almost surely, 2^32101213121 is an apocalyptic number.

It is an amenable number.

32101213121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32101213121 is an equidigital number, since it uses as much as digits as its factorization.

32101213121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 32101213121 its reverse (12131210123), we get a palindrome (44232423244).

The spelling of 32101213121 in words is "thirty-two billion, one hundred one million, two hundred thirteen thousand, one hundred twenty-one".