121123030211 has 8 divisors (see below), whose sum is σ = 122593803024. Its totient is φ = 119652530400.

The previous prime is 121123030187. The next prime is 121123030243. The reversal of 121123030211 is 112030321121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121123030211 - 2³⁴ = 103943161027 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 121123030211.

It is not an unprimeable number, because it can be changed into a prime (121123000211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 908825 + ... + 1033541.

It is an arithmetic number, because the mean of its divisors is an integer number (15324225378).

Almost surely, 2^121123030211 is an apocalyptic number.

121123030211 is a deficient number, since it is larger than the sum of its proper divisors (1470772813).

121123030211 is a wasteful number, since it uses less digits than its factorization.

121123030211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136501.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121123030211 its reverse (112030321121), we get a palindrome (233153351332).

The spelling of 121123030211 in words is "one hundred twenty-one billion, one hundred twenty-three million, thirty thousand, two hundred eleven".