321012121131243 has 12 divisors (see below), whose sum is σ = 463688826637920. Its totient is φ = 214005933829296.

The previous prime is 321012121131227. The next prime is 321012121131259. The reversal of 321012121131243 is 342131121210123.

321012121131243 is a `hidden beast` number, since 3 + 2 + 10 + 121 + 211 + 312 + 4 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (321012121131227) and next prime (321012121131259).

It is not a de Polignac number, because 321012121131243 - 2⁴ = 321012121131227 is a prime.

It is a super-2 number, since 2×321012121131243² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321012121136243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177963171 + ... + 179757932.

It is an arithmetic number, because the mean of its divisors is an integer number (38640735553160).

Almost surely, 2^{321012121131243} is an apocalyptic number.

321012121131243 is a deficient number, since it is larger than the sum of its proper divisors (142676705506677).

321012121131243 is a wasteful number, since it uses less digits than its factorization.

321012121131243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357820818 (or 357820815 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 321012121131243 its reverse (342131121210123), we get a palindrome (663143242341366).

The spelling of 321012121131243 in words is "three hundred twenty-one trillion, twelve billion, one hundred twenty-one million, one hundred thirty-one thousand, two hundred forty-three".