321140027403 has 32 divisors (see below), whose sum is σ = 512461107200. Its totient is φ = 197585695008.

The previous prime is 321140027389. The next prime is 321140027423. The reversal of 321140027403 is 304720041123.

It is a happy number.

321140027403 is a `hidden beast` number, since 3 + 211 + 40 + 0 + 2 + 7 + 403 = 666.

It is not a de Polignac number, because 321140027403 - 2³⁷ = 183701073931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321140027423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1747158 + ... + 1922196.

It is an arithmetic number, because the mean of its divisors is an integer number (16014409600).

Almost surely, 2^321140027403 is an apocalyptic number.

321140027403 is a deficient number, since it is larger than the sum of its proper divisors (191321079797).

321140027403 is a wasteful number, since it uses less digits than its factorization.

321140027403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180288 (or 180282 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 321140027403 its reverse (304720041123), we get a palindrome (625860068526).

The spelling of 321140027403 in words is "three hundred twenty-one billion, one hundred forty million, twenty-seven thousand, four hundred three".