23120011121211 has 8 divisors (see below), whose sum is σ = 34251868327760. Its totient is φ = 15413340747456.

The previous prime is 23120011121197. The next prime is 23120011121219. The reversal of 23120011121211 is 11212111002132.

It is a happy number.

23120011121211 is a `hidden beast` number, since 231 + 200 + 1 + 1 + 1 + 21 + 211 = 666.

It is not a de Polignac number, because 23120011121211 - 2¹⁵ = 23120011088443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120011121219) 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 7 ways as a sum of consecutive naturals, for example, 428148354070 + ... + 428148354123.

It is an arithmetic number, because the mean of its divisors is an integer number (4281483540970).

Almost surely, 2^{23120011121211} is an apocalyptic number.

23120011121211 is a deficient number, since it is larger than the sum of its proper divisors (11131857206549).

23120011121211 is an equidigital number, since it uses as much as digits as its factorization.

23120011121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856296708202 (or 856296708196 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 23120011121211 its reverse (11212111002132), we get a palindrome (34332122123343).

The spelling of 23120011121211 in words is "twenty-three trillion, one hundred twenty billion, eleven million, one hundred twenty-one thousand, two hundred eleven".