321401012 has 12 divisors (see below), whose sum is σ = 562995300. Its totient is φ = 160545216.

The previous prime is 321400987. The next prime is 321401021. The reversal of 321401012 is 210104123.

It can be written as a sum of positive squares in 2 ways, for example, as 293985316 + 27415696 = 17146^2 + 5236^2 .

It is a super-2 number, since 2×321401012² = 206597221029248288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34103 + ... + 42494.

It is an arithmetic number, because the mean of its divisors is an integer number (46916275).

Almost surely, 2^321401012 is an apocalyptic number.

It is an amenable number.

321401012 is a deficient number, since it is larger than the sum of its proper divisors (241594288).

321401012 is a wasteful number, since it uses less digits than its factorization.

321401012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77650 (or 77648 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 321401012 is about 17927.6605277989. The cubic root of 321401012 is about 684.9871324416.

Adding to 321401012 its reverse (210104123), we get a palindrome (531505135).

The spelling of 321401012 in words is "three hundred twenty-one million, four hundred one thousand, twelve".