212321312311031 has 8 divisors (see below), whose sum is σ = 264712285478784. Its totient is φ = 165445178424120.

The previous prime is 212321312310911. The next prime is 212321312311057. The reversal of 212321312311031 is 130113213123212.

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

It is a de Polignac number, because none of the positive numbers 2^k-212321312311031 is a prime.

It is a super-2 number, since 2×212321312311031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212321312311231) 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, 1378709820125 + ... + 1378709820278.

It is an arithmetic number, because the mean of its divisors is an integer number (33089035684848).

Almost surely, 2^{212321312311031} is an apocalyptic number.

212321312311031 is a deficient number, since it is larger than the sum of its proper divisors (52390973167753).

212321312311031 is a wasteful number, since it uses less digits than its factorization.

212321312311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757419640421.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 212321312311031 its reverse (130113213123212), we get a palindrome (342434525434243).

The spelling of 212321312311031 in words is "two hundred twelve trillion, three hundred twenty-one billion, three hundred twelve million, three hundred eleven thousand, thirty-one".