12121331111310 has 64 divisors (see below), whose sum is σ = 30310271207424. Its totient is φ = 3098850979200.

The previous prime is 12121331111273. The next prime is 12121331111333. The reversal of 12121331111310 is 1311113312121.

It is a super-2 number, since 2×12121331111310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 60805581 + ... + 61004600.

It is an arithmetic number, because the mean of its divisors is an integer number (473597987616).

Almost surely, 2^{12121331111310} is an apocalyptic number.

12121331111310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121331111310 is an abundant number, since it is smaller than the sum of its proper divisors (18188940096114).

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

12121331111310 is a wasteful number, since it uses less digits than its factorization.

12121331111310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121810329.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 12121331111310 its reverse (1311113312121), we get a palindrome (13432444423431).

The spelling of 12121331111310 in words is "twelve trillion, one hundred twenty-one billion, three hundred thirty-one million, one hundred eleven thousand, three hundred ten".