121023712 has 24 divisors (see below), whose sum is σ = 239524992. Its totient is φ = 60192000.

The previous prime is 121023703. The next prime is 121023719. The reversal of 121023712 is 217320121.

It is a self number, because there is not a number n which added to its sum of digits gives 121023712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121023719) 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, 3789 + ... + 16012.

It is an arithmetic number, because the mean of its divisors is an integer number (9980208).

Almost surely, 2^121023712 is an apocalyptic number.

It is an amenable number.

121023712 is a deficient number, since it is larger than the sum of its proper divisors (118501280).

121023712 is a wasteful number, since it uses less digits than its factorization.

121023712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20002 (or 19994 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 121023712 is about 11001.0777653828. The cubic root of 121023712 is about 494.6410512023.

Adding to 121023712 its reverse (217320121), we get a palindrome (338343833).

The spelling of 121023712 in words is "one hundred twenty-one million, twenty-three thousand, seven hundred twelve".