20211330132051 has 4 divisors (see below), whose sum is σ = 26948440176072. Its totient is φ = 13474220088032.

The previous prime is 20211330131983. The next prime is 20211330132073. The reversal of 20211330132051 is 15023103311202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211330132051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211330132151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368555022006 + ... + 3368555022011.

It is an arithmetic number, because the mean of its divisors is an integer number (6737110044018).

Almost surely, 2^{20211330132051} is an apocalyptic number.

20211330132051 is a deficient number, since it is larger than the sum of its proper divisors (6737110044021).

20211330132051 is an equidigital number, since it uses as much as digits as its factorization.

20211330132051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6737110044020.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 20211330132051 its reverse (15023103311202), we get a palindrome (35234433443253).

The spelling of 20211330132051 in words is "twenty trillion, two hundred eleven billion, three hundred thirty million, one hundred thirty-two thousand, fifty-one".