321434523 has 6 divisors (see below), whose sum is σ = 464294324. Its totient is φ = 214289676.

The previous prime is 321434501. The next prime is 321434557. The reversal of 321434523 is 325434123.

It is not a de Polignac number, because 321434523 - 2¹⁶ = 321368987 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321434573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17857465 + ... + 17857482.

Almost surely, 2^321434523 is an apocalyptic number.

321434523 is a deficient number, since it is larger than the sum of its proper divisors (142859801).

321434523 is a wasteful number, since it uses less digits than its factorization.

321434523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35714953 (or 35714950 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 321434523 is about 17928.5951206446. The cubic root of 321434523 is about 685.0109384298.

Adding to 321434523 its reverse (325434123), we get a palindrome (646868646).

The spelling of 321434523 in words is "three hundred twenty-one million, four hundred thirty-four thousand, five hundred twenty-three".