231330101 has 4 divisors (see below), whose sum is σ = 244937772. Its totient is φ = 217722432.

The previous prime is 231330059. The next prime is 231330103. The reversal of 231330101 is 101033132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145323025 + 86007076 = 12055^2 + 9274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231330101 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 (231330103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6803810 + ... + 6803843.

It is an arithmetic number, because the mean of its divisors is an integer number (61234443).

Almost surely, 2^231330101 is an apocalyptic number.

It is an amenable number.

231330101 is a deficient number, since it is larger than the sum of its proper divisors (13607671).

231330101 is a wasteful number, since it uses less digits than its factorization.

231330101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13607670.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 231330101 is about 15209.5398023740. The cubic root of 231330101 is about 613.8713748752.

Adding to 231330101 its reverse (101033132), we get a palindrome (332363233).

The spelling of 231330101 in words is "two hundred thirty-one million, three hundred thirty thousand, one hundred one".