12121301310 has 32 divisors (see below), whose sum is σ = 29241868320. Its totient is φ = 3215597568.

The previous prime is 12121301267. The next prime is 12121301327. The reversal of 12121301310 is 1310312121.

It is a happy number.

It is a super-2 number, since 2×12121301310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12121301310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040955 + ... + 1052534.

It is an arithmetic number, because the mean of its divisors is an integer number (913808385).

Almost surely, 2^12121301310 is an apocalyptic number.

12121301310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121301310 is an abundant number, since it is smaller than the sum of its proper divisors (17120567010).

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

12121301310 is a wasteful number, since it uses less digits than its factorization.

12121301310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093692.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12121301310 its reverse (1310312121), we get a palindrome (13431613431).

The spelling of 12121301310 in words is "twelve billion, one hundred twenty-one million, three hundred one thousand, three hundred ten".