121012231301320 has 128 divisors (see below), whose sum is σ = 284574257510400. Its totient is φ = 46267266076416.

The previous prime is 121012231301281. The next prime is 121012231301333. The reversal of 121012231301320 is 23103132210121.

It is a junction number, because it is equal to n+sod(n) for n = 121012231301291 and 121012231301300.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 651396687 + ... + 651582433.

It is an arithmetic number, because the mean of its divisors is an integer number (2223236386800).

Almost surely, 2^{121012231301320} is an apocalyptic number.

121012231301320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121012231301320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142287128755200).

121012231301320 is an abundant number, since it is smaller than the sum of its proper divisors (163562026209080).

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

121012231301320 is a wasteful number, since it uses less digits than its factorization.

121012231301320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193907 (or 193903 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121012231301320 its reverse (23103132210121), we get a palindrome (144115363511441).

The spelling of 121012231301320 in words is "one hundred twenty-one trillion, twelve billion, two hundred thirty-one million, three hundred one thousand, three hundred twenty".