13121030002120 has 64 divisors (see below), whose sum is σ = 29539480723200. Its totient is φ = 5245361756160.

The previous prime is 13121030002099. The next prime is 13121030002127. The reversal of 13121030002120 is 2120003012131.

It is a super-2 number, since 2×13121030002120² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13121030002094 and 13121030002103.

It is not an unprimeable number, because it can be changed into a prime (13121030002127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556742577 + ... + 556766143.

It is an arithmetic number, because the mean of its divisors is an integer number (461554386300).

Almost surely, 2^{13121030002120} is an apocalyptic number.

13121030002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121030002120 is an abundant number, since it is smaller than the sum of its proper divisors (16418450721080).

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

13121030002120 is a wasteful number, since it uses less digits than its factorization.

13121030002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31078 (or 31074 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13121030002120 its reverse (2120003012131), we get a palindrome (15241033014251).

The spelling of 13121030002120 in words is "thirteen trillion, one hundred twenty-one billion, thirty million, two thousand, one hundred twenty".