32121123020251 has 2 divisors, whose sum is σ = 32121123020252. Its totient is φ = 32121123020250.

The previous prime is 32121123020221. The next prime is 32121123020321. The reversal of 32121123020251 is 15202032112123.

It is a weak prime.

It is an emirp because it is prime and its reverse (15202032112123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32121123020251 - 2¹⁹ = 32121122495963 is a prime.

It is a super-2 number, since 2×32121123020251² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32121123020221) 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, 16060561510125 + 16060561510126.

It is an arithmetic number, because the mean of its divisors is an integer number (16060561510126).

Almost surely, 2^{32121123020251} is an apocalyptic number.

32121123020251 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121123020251 is an equidigital number, since it uses as much as digits as its factorization.

32121123020251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 32121123020251 its reverse (15202032112123), we get a palindrome (47323155132374).

The spelling of 32121123020251 in words is "thirty-two trillion, one hundred twenty-one billion, one hundred twenty-three million, twenty thousand, two hundred fifty-one".