13234321545 has 32 divisors (see below), whose sum is σ = 21522392064. Its totient is φ = 6942936000.

The previous prime is 13234321501. The next prime is 13234321559. The reversal of 13234321545 is 54512343231.

It is not a de Polignac number, because 13234321545 - 2⁶ = 13234321481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457770 + ... + 485820.

It is an arithmetic number, because the mean of its divisors is an integer number (672574752).

Almost surely, 2^13234321545 is an apocalyptic number.

13234321545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13234321545 is a deficient number, since it is larger than the sum of its proper divisors (8288070519).

13234321545 is a wasteful number, since it uses less digits than its factorization.

13234321545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28573.

The product of its digits is 43200, while the sum is 33.

Adding to 13234321545 its reverse (54512343231), we get a palindrome (67746664776).

The spelling of 13234321545 in words is "thirteen billion, two hundred thirty-four million, three hundred twenty-one thousand, five hundred forty-five".