231341433140 has 48 divisors (see below), whose sum is σ = 507400201728. Its totient is φ = 88432802304.

The previous prime is 231341433133. The next prime is 231341433203. The reversal of 231341433140 is 41334143132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279404 + ... + 735356.

It is an arithmetic number, because the mean of its divisors is an integer number (10570837536).

Almost surely, 2^231341433140 is an apocalyptic number.

231341433140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231341433140 is an abundant number, since it is smaller than the sum of its proper divisors (276058768588).

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

231341433140 is a wasteful number, since it uses less digits than its factorization.

231341433140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457088 (or 457086 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 231341433140 its reverse (41334143132), we get a palindrome (272675576272).

The spelling of 231341433140 in words is "two hundred thirty-one billion, three hundred forty-one million, four hundred thirty-three thousand, one hundred forty".