231352534345 has 16 divisors (see below), whose sum is σ = 278626198032. Its totient is φ = 184414371840.

The previous prime is 231352534331. The next prime is 231352534459. The reversal of 231352534345 is 543435253132.

It can be written as a sum of positive squares in 8 ways, for example, as 122603621904 + 108748912441 = 350148^2 + 329771^2 .

It is not a de Polignac number, because 231352534345 - 2²¹ = 231350437193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231352534298 and 231352534307.

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, 1604425 + ... + 1742665.

It is an arithmetic number, because the mean of its divisors is an integer number (17414137377).

Almost surely, 2^231352534345 is an apocalyptic number.

It is an amenable number.

231352534345 is a deficient number, since it is larger than the sum of its proper divisors (47273663687).

231352534345 is a wasteful number, since it uses less digits than its factorization.

231352534345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139452.

The product of its digits is 648000, while the sum is 40.

Adding to 231352534345 its reverse (543435253132), we get a palindrome (774787787477).

The spelling of 231352534345 in words is "two hundred thirty-one billion, three hundred fifty-two million, five hundred thirty-four thousand, three hundred forty-five".