122023517311 has 4 divisors (see below), whose sum is σ = 122050066072. Its totient is φ = 121996968552.

The previous prime is 122023517293. The next prime is 122023517321. The reversal of 122023517311 is 113715320221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113715320221 = 37 ⋅3073387033.

It is a cyclic number.

It is not a de Polignac number, because 122023517311 - 2³¹ = 119876033663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122023517311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122023517321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13267485 + ... + 13276678.

It is an arithmetic number, because the mean of its divisors is an integer number (30512516518).

Almost surely, 2^122023517311 is an apocalyptic number.

122023517311 is a deficient number, since it is larger than the sum of its proper divisors (26548761).

122023517311 is an equidigital number, since it uses as much as digits as its factorization.

122023517311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26548760.

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 122023517311 its reverse (113715320221), we get a palindrome (235738837532).

The spelling of 122023517311 in words is "one hundred twenty-two billion, twenty-three million, five hundred seventeen thousand, three hundred eleven".