321213412115 has 16 divisors (see below), whose sum is σ = 413878299840. Its totient is φ = 238448394240.

The previous prime is 321213412111. The next prime is 321213412171. The reversal of 321213412115 is 511214312123.

It is not a de Polignac number, because 321213412115 - 2² = 321213412111 is a prime.

It is a super-2 number, since 2×321213412115² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321213412111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26606510 + ... + 26618579.

It is an arithmetic number, because the mean of its divisors is an integer number (25867393740).

Almost surely, 2^321213412115 is an apocalyptic number.

321213412115 is a deficient number, since it is larger than the sum of its proper divisors (92664887725).

321213412115 is a wasteful number, since it uses less digits than its factorization.

321213412115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53225182.

The product of its digits is 1440, while the sum is 26.

Adding to 321213412115 its reverse (511214312123), we get a palindrome (832427724238).

The spelling of 321213412115 in words is "three hundred twenty-one billion, two hundred thirteen million, four hundred twelve thousand, one hundred fifteen".