21120133102151 has 2 divisors, whose sum is σ = 21120133102152. Its totient is φ = 21120133102150.

The previous prime is 21120133102097. The next prime is 21120133102249. The reversal of 21120133102151 is 15120133102112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21120133102151 - 2²⁶ = 21120065993287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21120133102351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10560066551075 + 10560066551076.

It is an arithmetic number, because the mean of its divisors is an integer number (10560066551076).

Almost surely, 2^{21120133102151} is an apocalyptic number.

21120133102151 is a deficient number, since it is larger than the sum of its proper divisors (1).

21120133102151 is an equidigital number, since it uses as much as digits as its factorization.

21120133102151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 21120133102151 its reverse (15120133102112), we get a palindrome (36240266204263).

The spelling of 21120133102151 in words is "twenty-one trillion, one hundred twenty billion, one hundred thirty-three million, one hundred two thousand, one hundred fifty-one".