232131324353550 has 96 divisors (see below), whose sum is σ = 576970832908032. Its totient is φ = 61763510465280.

The previous prime is 232131324353443. The next prime is 232131324353557. The reversal of 232131324353550 is 55353423131232.

It is a super-2 number, since 2×232131324353550² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131324353557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1911318927 + ... + 1911440373.

It is an arithmetic number, because the mean of its divisors is an integer number (6010112842792).

Almost surely, 2^{232131324353550} is an apocalyptic number.

232131324353550 is an abundant number, since it is smaller than the sum of its proper divisors (344839508554482).

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

232131324353550 is a wasteful number, since it uses less digits than its factorization.

232131324353550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149802 (or 149797 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 42.

Adding to 232131324353550 its reverse (55353423131232), we get a palindrome (287484747484782).

The spelling of 232131324353550 in words is "two hundred thirty-two trillion, one hundred thirty-one billion, three hundred twenty-four million, three hundred fifty-three thousand, five hundred fifty".