12121013333131 has 8 divisors (see below), whose sum is σ = 12523941360000. Its totient is φ = 11718830781120.

The previous prime is 12121013333063. The next prime is 12121013333153. The reversal of 12121013333131 is 13133331012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12121013333131 - 2¹³ = 12121013324939 is a prime.

It is a super-2 number, since 2×12121013333131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12121013333096 and 12121013333105.

It is not an unprimeable number, because it can be changed into a prime (12121013333161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186335656 + ... + 186400693.

It is an arithmetic number, because the mean of its divisors is an integer number (1565492670000).

Almost surely, 2^{12121013333131} is an apocalyptic number.

12121013333131 is a deficient number, since it is larger than the sum of its proper divisors (402928026869).

12121013333131 is a wasteful number, since it uses less digits than its factorization.

12121013333131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372737429.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 12121013333131 its reverse (13133331012121), we get a palindrome (25254344345252).

The spelling of 12121013333131 in words is "twelve trillion, one hundred twenty-one billion, thirteen million, three hundred thirty-three thousand, one hundred thirty-one".