122135213113 has 4 divisors (see below), whose sum is σ = 122135912080. Its totient is φ = 122134514148.

The previous prime is 122135213107. The next prime is 122135213129. The reversal of 122135213113 is 311312531221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 311312531221 = 199 ⋅1564384579.

It is a cyclic number.

It is not a de Polignac number, because 122135213113 - 2³³ = 113545278521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122135213513) 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, 172078 + ... + 523336.

It is an arithmetic number, because the mean of its divisors is an integer number (30533978020).

Almost surely, 2^122135213113 is an apocalyptic number.

It is an amenable number.

122135213113 is a deficient number, since it is larger than the sum of its proper divisors (698967).

122135213113 is an equidigital number, since it uses as much as digits as its factorization.

122135213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698966.

The product of its digits is 1080, while the sum is 25.

Adding to 122135213113 its reverse (311312531221), we get a palindrome (433447744334).

The spelling of 122135213113 in words is "one hundred twenty-two billion, one hundred thirty-five million, two hundred thirteen thousand, one hundred thirteen".