5431111345 has 32 divisors (see below), whose sum is σ = 7303063680. Its totient is φ = 3843248640.

The previous prime is 5431111333. The next prime is 5431111379.

5431111345 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5431111345 - 2⁵ = 5431111313 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, 631917 + ... + 640453.

It is an arithmetic number, because the mean of its divisors is an integer number (228220740).

Almost surely, 2^5431111345 is an apocalyptic number.

5431111345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5431111345 is a deficient number, since it is larger than the sum of its proper divisors (1871952335).

5431111345 is a wasteful number, since it uses less digits than its factorization.

5431111345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865.

The product of its digits is 3600, while the sum is 28.

The square root of 5431111345 is about 73696.0741491703. The cubic root of 5431111345 is about 1757.7734569203.

It can be divided in two parts, 54311 and 11345, that added together give a palindrome (65656).

The spelling of 5431111345 in words is "five billion, four hundred thirty-one million, one hundred eleven thousand, three hundred forty-five".