4021321134 has 96 divisors (see below), whose sum is σ = 8903491200. Its totient is φ = 1209116160.

The previous prime is 4021321111. The next prime is 4021321141. The reversal of 4021321134 is 4311231204.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4021321134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10610157 + ... + 10610535.

It is an arithmetic number, because the mean of its divisors is an integer number (92744700).

Almost surely, 2^4021321134 is an apocalyptic number.

4021321134 is an abundant number, since it is smaller than the sum of its proper divisors (4882170066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021321134 is a wasteful number, since it uses less digits than its factorization.

4021321134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4021321134 is about 63413.8875483912. The cubic root of 4021321134 is about 1590.2164880653.

Adding to 4021321134 its reverse (4311231204), we get a palindrome (8332552338).

The spelling of 4021321134 in words is "four billion, twenty-one million, three hundred twenty-one thousand, one hundred thirty-four".