32511552121 has 2 divisors, whose sum is σ = 32511552122. Its totient is φ = 32511552120.

The previous prime is 32511552109. The next prime is 32511552127. The reversal of 32511552121 is 12125511523.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32378403600 + 133148521 = 179940^2 + 11539^2 .

It is a cyclic number.

It is not a de Polignac number, because 32511552121 - 2⁹ = 32511551609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32511552121.

It is not a weakly prime, because it can be changed into another prime (32511552127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16255776060 + 16255776061.

It is an arithmetic number, because the mean of its divisors is an integer number (16255776061).

Almost surely, 2^32511552121 is an apocalyptic number.

It is an amenable number.

32511552121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32511552121 is an equidigital number, since it uses as much as digits as its factorization.

32511552121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000, while the sum is 28.

The spelling of 32511552121 in words is "thirty-two billion, five hundred eleven million, five hundred fifty-two thousand, one hundred twenty-one".