121230121113 has 48 divisors (see below), whose sum is σ = 186911262720. Its totient is φ = 75539784672.

The previous prime is 121230121097. The next prime is 121230121121. The reversal of 121230121113 is 311121032121.

It is not a de Polignac number, because 121230121113 - 2⁴ = 121230121097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121230121163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6246058 + ... + 6265436.

It is an arithmetic number, because the mean of its divisors is an integer number (3893984640).

Almost surely, 2^121230121113 is an apocalyptic number.

It is an amenable number.

121230121113 is a deficient number, since it is larger than the sum of its proper divisors (65681141607).

121230121113 is a wasteful number, since it uses less digits than its factorization.

121230121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20098 (or 20095 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121230121113 its reverse (311121032121), we get a palindrome (432351153234).

The spelling of 121230121113 in words is "one hundred twenty-one billion, two hundred thirty million, one hundred twenty-one thousand, one hundred thirteen".