321121012 has 6 divisors (see below), whose sum is σ = 561961778. Its totient is φ = 160560504.

The previous prime is 321120991. The next prime is 321121067. The reversal of 321121012 is 210121123.

It can be written as a sum of positive squares in only one way, i.e., 182682256 + 138438756 = 13516^2 + 11766^2 .

It is a super-3 number, since 3×321121012³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321120983 and 321121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40140123 + ... + 40140130.

Almost surely, 2^321121012 is an apocalyptic number.

It is an amenable number.

321121012 is a deficient number, since it is larger than the sum of its proper divisors (240840766).

321121012 is a wasteful number, since it uses less digits than its factorization.

321121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80280257 (or 80280255 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 321121012 is about 17919.8496645480. The cubic root of 321121012 is about 684.7881576265.

Adding to 321121012 its reverse (210121123), we get a palindrome (531242135).

It can be divided in two parts, 32112 and 1012, that added together give a square (33124 = 182²).

The spelling of 321121012 in words is "three hundred twenty-one million, one hundred twenty-one thousand, twelve".