321140230436 has 12 divisors (see below), whose sum is σ = 575065064112. Its totient is φ = 156835926408.

The previous prime is 321140230423. The next prime is 321140230487. The reversal of 321140230436 is 634032041123.

It is a junction number, because it is equal to n+sod(n) for n = 321140230399 and 321140230408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933547010 + ... + 933547353.

It is an arithmetic number, because the mean of its divisors is an integer number (47922088676).

Almost surely, 2^321140230436 is an apocalyptic number.

It is an amenable number.

321140230436 is a deficient number, since it is larger than the sum of its proper divisors (253924833676).

321140230436 is a wasteful number, since it uses less digits than its factorization.

321140230436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867094410 (or 1867094408 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 321140230436 its reverse (634032041123), we get a palindrome (955172271559).

The spelling of 321140230436 in words is "three hundred twenty-one billion, one hundred forty million, two hundred thirty thousand, four hundred thirty-six".