434351140423 has 4 divisors (see below), whose sum is σ = 434355171120. Its totient is φ = 434347109728.

The previous prime is 434351140397. The next prime is 434351140427. The reversal of 434351140423 is 324041153434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324041153434 = 2 ⋅162020576717.

It is a cyclic number.

It is not a de Polignac number, because 434351140423 - 2¹³ = 434351132231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434351140427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1849138 + ... + 2070751.

It is an arithmetic number, because the mean of its divisors is an integer number (108588792780).

Almost surely, 2^434351140423 is an apocalyptic number.

434351140423 is a deficient number, since it is larger than the sum of its proper divisors (4030697).

434351140423 is a wasteful number, since it uses less digits than its factorization.

434351140423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030696.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 434351140423 its reverse (324041153434), we get a palindrome (758392293857).

The spelling of 434351140423 in words is "four hundred thirty-four billion, three hundred fifty-one million, one hundred forty thousand, four hundred twenty-three".