321420244213442 has 64 divisors (see below), whose sum is σ = 568795791223296. Its totient is φ = 134569058396160.

The previous prime is 321420244213429. The next prime is 321420244213603. The reversal of 321420244213442 is 244312442024123.

It is a junction number, because it is equal to n+sod(n) for n = 321420244213396 and 321420244213405.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210826838 + ... + 212345934.

It is an arithmetic number, because the mean of its divisors is an integer number (8887434237864).

Almost surely, 2^{321420244213442} is an apocalyptic number.

321420244213442 is a deficient number, since it is larger than the sum of its proper divisors (247375547009854).

321420244213442 is a wasteful number, since it uses less digits than its factorization.

321420244213442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531211.

The product of its (nonzero) digits is 294912, while the sum is 38.

Adding to 321420244213442 its reverse (244312442024123), we get a palindrome (565732686237565).

The spelling of 321420244213442 in words is "three hundred twenty-one trillion, four hundred twenty billion, two hundred forty-four million, two hundred thirteen thousand, four hundred forty-two".