122013311 has 4 divisors (see below), whose sum is σ = 139443792. Its totient is φ = 104582832.

The previous prime is 122013299. The next prime is 122013313. The reversal of 122013311 is 113310221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113310221 = 29 ⋅3907249.

It is a cyclic number.

It is not a de Polignac number, because 122013311 - 2¹⁰ = 122012287 is a prime.

It is a super-2 number, since 2×122013311² = 29774496122365442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122013313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8715230 + ... + 8715243.

It is an arithmetic number, because the mean of its divisors is an integer number (34860948).

Almost surely, 2^122013311 is an apocalyptic number.

122013311 is a deficient number, since it is larger than the sum of its proper divisors (17430481).

122013311 is an equidigital number, since it uses as much as digits as its factorization.

122013311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17430480.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 122013311 is about 11045.9635614101. The cubic root of 122013311 is about 495.9856034995.

Adding to 122013311 its reverse (113310221), we get a palindrome (235323532).

The spelling of 122013311 in words is "one hundred twenty-two million, thirteen thousand, three hundred eleven".