121302113011112 has 128 divisors (see below), whose sum is σ = 251163827066880. Its totient is φ = 54463184160000.

The previous prime is 121302113011103. The next prime is 121302113011117. The reversal of 121302113011112 is 211110311203121.

It is not an unprimeable number, because it can be changed into a prime (121302113011117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7049570813 + ... + 7049588019.

It is an arithmetic number, because the mean of its divisors is an integer number (1962217398960).

Almost surely, 2^{121302113011112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121302113011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125581913533440).

121302113011112 is an abundant number, since it is smaller than the sum of its proper divisors (129861714055768).

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

121302113011112 is a wasteful number, since it uses less digits than its factorization.

121302113011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19143 (or 19139 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 121302113011112 its reverse (211110311203121), we get a palindrome (332412424214233).

The spelling of 121302113011112 in words is "one hundred twenty-one trillion, three hundred two billion, one hundred thirteen million, eleven thousand, one hundred twelve".