34431123505 has 16 divisors (see below), whose sum is σ = 43520685120. Its totient is φ = 26077923648.

The previous prime is 34431123499. The next prime is 34431123547. The reversal of 34431123505 is 50532113443.

It is a cyclic number.

It is not a de Polignac number, because 34431123505 - 2⁵ = 34431123473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25699 + ... + 263671.

It is an arithmetic number, because the mean of its divisors is an integer number (2720042820).

Almost surely, 2^34431123505 is an apocalyptic number.

It is an amenable number.

34431123505 is a deficient number, since it is larger than the sum of its proper divisors (9089561615).

34431123505 is a wasteful number, since it uses less digits than its factorization.

34431123505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239520.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 34431123505 its reverse (50532113443), we get a palindrome (84963236948).

The spelling of 34431123505 in words is "thirty-four billion, four hundred thirty-one million, one hundred twenty-three thousand, five hundred five".