231234223322140 has 24 divisors (see below), whose sum is σ = 502336416183840. Its totient is φ = 89304251765568.

The previous prime is 231234223322101. The next prime is 231234223322173. The reversal of 231234223322140 is 41223322432132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231234223322096 and 231234223322105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199339847112 + ... + 199339848271.

It is an arithmetic number, because the mean of its divisors is an integer number (20930684007660).

Almost surely, 2^{231234223322140} is an apocalyptic number.

231234223322140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231234223322140 is an abundant number, since it is smaller than the sum of its proper divisors (271102192861700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231234223322140 is a wasteful number, since it uses less digits than its factorization.

231234223322140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398679695421 (or 398679695419 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 231234223322140 its reverse (41223322432132), we get a palindrome (272457545754272).

The spelling of 231234223322140 in words is "two hundred thirty-one trillion, two hundred thirty-four billion, two hundred twenty-three million, three hundred twenty-two thousand, one hundred forty".