321140020235 has 16 divisors (see below), whose sum is σ = 387772418880. Its totient is φ = 255310442880.

The previous prime is 321140020193. The next prime is 321140020273. The reversal of 321140020235 is 532020041123.

It is not a de Polignac number, because 321140020235 - 2²⁴ = 321123243019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321140020235.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1837586 + ... + 2004744.

It is an arithmetic number, because the mean of its divisors is an integer number (24235776180).

Almost surely, 2^321140020235 is an apocalyptic number.

321140020235 is a deficient number, since it is larger than the sum of its proper divisors (66632398645).

321140020235 is a wasteful number, since it uses less digits than its factorization.

321140020235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169558.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 321140020235 its reverse (532020041123), we get a palindrome (853160061358).

The spelling of 321140020235 in words is "three hundred twenty-one billion, one hundred forty million, twenty thousand, two hundred thirty-five".