12120121310 has 32 divisors (see below), whose sum is σ = 23981215104. Its totient is φ = 4373668000.

The previous prime is 12120121291. The next prime is 12120121319. The reversal of 12120121310 is 1312102121.

It is a super-2 number, since 2×12120121310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120121319) 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, 406136 + ... + 434955.

It is an arithmetic number, because the mean of its divisors is an integer number (749412972).

Almost surely, 2^12120121310 is an apocalyptic number.

12120121310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120121310 is a deficient number, since it is larger than the sum of its proper divisors (11861093794).

12120121310 is a wasteful number, since it uses less digits than its factorization.

12120121310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841240.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12120121310 its reverse (1312102121), we get a palindrome (13432223431).

The spelling of 12120121310 in words is "twelve billion, one hundred twenty million, one hundred twenty-one thousand, three hundred ten".