12121312303031 has 8 divisors (see below), whose sum is σ = 12159674449824. Its totient is φ = 12082950940320.

The previous prime is 12121312302973. The next prime is 12121312303063. The reversal of 12121312303031 is 13030321312121.

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 12121312303031 - 2¹⁴ = 12121312286647 is a prime.

It is a super-2 number, since 2×12121312303031² (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 = 12121312302988 and 12121312303006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121312303091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58449881 + ... + 58656893.

It is an arithmetic number, because the mean of its divisors is an integer number (1519959306228).

Almost surely, 2^{12121312303031} is an apocalyptic number.

12121312303031 is a deficient number, since it is larger than the sum of its proper divisors (38362146793).

12121312303031 is a wasteful number, since it uses less digits than its factorization.

12121312303031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392041.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12121312303031 its reverse (13030321312121), we get a palindrome (25151633615152).

The spelling of 12121312303031 in words is "twelve trillion, one hundred twenty-one billion, three hundred twelve million, three hundred three thousand, thirty-one".