231330340101 has 24 divisors (see below), whose sum is σ = 358886546400. Its totient is φ = 132156172512.

The previous prime is 231330340069. The next prime is 231330340123. The reversal of 231330340101 is 101043033132.

It is not a de Polignac number, because 231330340101 - 2⁵ = 231330340069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231330340141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410595 + ... + 794511.

It is an arithmetic number, because the mean of its divisors is an integer number (14953606100).

Almost surely, 2^231330340101 is an apocalyptic number.

231330340101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

231330340101 is a deficient number, since it is larger than the sum of its proper divisors (127556206299).

231330340101 is a wasteful number, since it uses less digits than its factorization.

231330340101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388033 (or 388026 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231330340101 its reverse (101043033132), we get a palindrome (332373373233).

The spelling of 231330340101 in words is "two hundred thirty-one billion, three hundred thirty million, three hundred forty thousand, one hundred one".