231330030646 has 64 divisors (see below), whose sum is σ = 411273112320. Its totient is φ = 96204205440.

The previous prime is 231330030623. The next prime is 231330030691. The reversal of 231330030646 is 646030033132.

It is a happy number.

It is a congruent number.

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, 17661676 + ... + 17674768.

It is an arithmetic number, because the mean of its divisors is an integer number (6426142380).

Almost surely, 2^231330030646 is an apocalyptic number.

231330030646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

231330030646 is a deficient number, since it is larger than the sum of its proper divisors (179943081674).

231330030646 is a wasteful number, since it uses less digits than its factorization.

231330030646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13661.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 231330030646 its reverse (646030033132), we get a palindrome (877360063778).

The spelling of 231330030646 in words is "two hundred thirty-one billion, three hundred thirty million, thirty thousand, six hundred forty-six".