121123031312 has 60 divisors (see below), whose sum is σ = 239580665856. Its totient is φ = 59317876800.

The previous prime is 121123031299. The next prime is 121123031321. The reversal of 121123031312 is 213130321121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12676937 + ... + 12686487.

Almost surely, 2^121123031312 is an apocalyptic number.

It is an amenable number.

121123031312 is a deficient number, since it is larger than the sum of its proper divisors (118457634544).

121123031312 is an equidigital number, since it uses as much as digits as its factorization.

121123031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9844 (or 9759 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121123031312 its reverse (213130321121), we get a palindrome (334253352433).

The spelling of 121123031312 in words is "one hundred twenty-one billion, one hundred twenty-three million, thirty-one thousand, three hundred twelve".