121122123113 has 4 divisors (see below), whose sum is σ = 122254105680. Its totient is φ = 119990140548.

The previous prime is 121122123097. The next prime is 121122123137. The reversal of 121122123113 is 311321221121.

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.

It is a cyclic number.

It is not a de Polignac number, because 121122123113 - 2⁴ = 121122123097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121122123163) 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, 565991123 + ... + 565991336.

It is an arithmetic number, because the mean of its divisors is an integer number (30563526420).

Almost surely, 2^121122123113 is an apocalyptic number.

It is an amenable number.

121122123113 is a deficient number, since it is larger than the sum of its proper divisors (1131982567).

121122123113 is a wasteful number, since it uses less digits than its factorization.

121122123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131982566.

The product of its digits is 144, while the sum is 20.

Adding to 121122123113 its reverse (311321221121), we get a palindrome (432443344234).

The spelling of 121122123113 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred twenty-three thousand, one hundred thirteen".