121003130013210 has 96 divisors (see below), whose sum is σ = 317899527912720. Its totient is φ = 31930277760000.

The previous prime is 121003130013179. The next prime is 121003130013263. The reversal of 121003130013210 is 12310031300121.

121003130013210 is a `hidden beast` number, since 1 + 2 + 10 + 0 + 31 + 300 + 1 + 321 + 0 = 666.

121003130013210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 40911924515049 + 80091205498161 = 6396243^2 + 8949369^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12675456 + ... + 20066724.

Almost surely, 2^{121003130013210} is an apocalyptic number.

121003130013210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121003130013210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158949763956360).

121003130013210 is an abundant number, since it is smaller than the sum of its proper divisors (196896397899510).

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

121003130013210 is a wasteful number, since it uses less digits than its factorization.

121003130013210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7393184 (or 7393181 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 121003130013210 its reverse (12310031300121), we get a palindrome (133313161313331).

The spelling of 121003130013210 in words is "one hundred twenty-one trillion, three billion, one hundred thirty million, thirteen thousand, two hundred ten".