121133012312 has 32 divisors (see below), whose sum is σ = 244624270800. Its totient is φ = 55900969344.

The previous prime is 121133012311. The next prime is 121133012317. The reversal of 121133012312 is 213210331121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121133012311) 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, 883403 + ... + 1011269.

Almost surely, 2^121133012312 is an apocalyptic number.

It is an amenable number.

121133012312 is an abundant number, since it is smaller than the sum of its proper divisors (123491258488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121133012312 is a wasteful number, since it uses less digits than its factorization.

121133012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136995 (or 136991 counting only the distinct ones).

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

Adding to 121133012312 its reverse (213210331121), we get a palindrome (334343343433).

The spelling of 121133012312 in words is "one hundred twenty-one billion, one hundred thirty-three million, twelve thousand, three hundred twelve".