121340425211 has 4 divisors (see below), whose sum is σ = 127726763400. Its totient is φ = 114954087024.

The previous prime is 121340425189. The next prime is 121340425231. The reversal of 121340425211 is 112524043121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121340425211 - 2⁶ = 121340425147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121340425231) 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, 3193169066 + ... + 3193169103.

It is an arithmetic number, because the mean of its divisors is an integer number (31931690850).

Almost surely, 2^121340425211 is an apocalyptic number.

121340425211 is a deficient number, since it is larger than the sum of its proper divisors (6386338189).

121340425211 is an equidigital number, since it uses as much as digits as its factorization.

121340425211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6386338188.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 121340425211 its reverse (112524043121), we get a palindrome (233864468332).

The spelling of 121340425211 in words is "one hundred twenty-one billion, three hundred forty million, four hundred twenty-five thousand, two hundred eleven".