321140230423 has 2 divisors, whose sum is σ = 321140230424. Its totient is φ = 321140230422.

The previous prime is 321140230403. The next prime is 321140230487. The reversal of 321140230423 is 324032041123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321140230423 - 2²¹ = 321138133271 is a prime.

It is a super-2 number, since 2×321140230423² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321140230403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160570115211 + 160570115212.

It is an arithmetic number, because the mean of its divisors is an integer number (160570115212).

Almost surely, 2^321140230423 is an apocalyptic number.

321140230423 is a deficient number, since it is larger than the sum of its proper divisors (1).

321140230423 is an equidigital number, since it uses as much as digits as its factorization.

321140230423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 321140230423 its reverse (324032041123), we get a palindrome (645172271546).

The spelling of 321140230423 in words is "three hundred twenty-one billion, one hundred forty million, two hundred thirty thousand, four hundred twenty-three".