231030342661 has 16 divisors (see below), whose sum is σ = 253841356800. Its totient is φ = 209290335408.

The previous prime is 231030342637. The next prime is 231030342677. The reversal of 231030342661 is 166243030132.

It is a cyclic number.

It is not a de Polignac number, because 231030342661 - 2⁵ = 231030342629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231030342161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1370760 + ... + 1530046.

It is an arithmetic number, because the mean of its divisors is an integer number (15865084800).

Almost surely, 2^231030342661 is an apocalyptic number.

It is an amenable number.

231030342661 is a deficient number, since it is larger than the sum of its proper divisors (22811014139).

231030342661 is a wasteful number, since it uses less digits than its factorization.

231030342661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162648.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 231030342661 its reverse (166243030132), we get a palindrome (397273372793).

The spelling of 231030342661 in words is "two hundred thirty-one billion, thirty million, three hundred forty-two thousand, six hundred sixty-one".