321134134550 has 24 divisors (see below), whose sum is σ = 597329382312. Its totient is φ = 128449376000.

The previous prime is 321134134523. The next prime is 321134134577. The reversal of 321134134550 is 55431431123.

It is an interprime number because it is at equal distance from previous prime (321134134523) and next prime (321134134577).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1717670 + ... + 1895430.

It is an arithmetic number, because the mean of its divisors is an integer number (24888724263).

Almost surely, 2^321134134550 is an apocalyptic number.

321134134550 is a deficient number, since it is larger than the sum of its proper divisors (276195247762).

321134134550 is a wasteful number, since it uses less digits than its factorization.

321134134550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213904 (or 213899 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 321134134550 its reverse (55431431123), we get a palindrome (376565565673).

The spelling of 321134134550 in words is "three hundred twenty-one billion, one hundred thirty-four million, one hundred thirty-four thousand, five hundred fifty".