231030511305 has 64 divisors (see below), whose sum is σ = 428680442880. Its totient is φ = 105068448000.

The previous prime is 231030511277. The next prime is 231030511321. The reversal of 231030511305 is 503115030132.

It is not a de Polignac number, because 231030511305 - 2¹⁶ = 231030445769 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48187 + ... + 681456.

It is an arithmetic number, because the mean of its divisors is an integer number (6698131920).

Almost surely, 2^231030511305 is an apocalyptic number.

It is an amenable number.

231030511305 is a deficient number, since it is larger than the sum of its proper divisors (197649931575).

231030511305 is a wasteful number, since it uses less digits than its factorization.

231030511305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729782.

The product of its (nonzero) digits is 1350, while the sum is 24.

Adding to 231030511305 its reverse (503115030132), we get a palindrome (734145541437).

The spelling of 231030511305 in words is "two hundred thirty-one billion, thirty million, five hundred eleven thousand, three hundred five".