23120553021211 has 2 divisors, whose sum is σ = 23120553021212. Its totient is φ = 23120553021210.

The previous prime is 23120553021157. The next prime is 23120553021257. The reversal of 23120553021211 is 11212035502132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23120553021211 - 2²¹ = 23120550924059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23120553021211.

It is not a weakly prime, because it can be changed into another prime (23120553021011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560276510605 + 11560276510606.

It is an arithmetic number, because the mean of its divisors is an integer number (11560276510606).

Almost surely, 2^{23120553021211} is an apocalyptic number.

23120553021211 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120553021211 is an equidigital number, since it uses as much as digits as its factorization.

23120553021211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 23120553021211 its reverse (11212035502132), we get a palindrome (34332588523343).

The spelling of 23120553021211 in words is "twenty-three trillion, one hundred twenty billion, five hundred fifty-three million, twenty-one thousand, two hundred eleven".