231545551543332 has 48 divisors (see below), whose sum is σ = 584096351016192. Its totient is φ = 70967568015360.

The previous prime is 231545551543331. The next prime is 231545551543343. The reversal of 231545551543332 is 233345155545132.

It is a happy number.

It is a super-2 number, since 2×231545551543332² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231545551543331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2887637644 + ... + 2887717827.

It is an arithmetic number, because the mean of its divisors is an integer number (12168673979504).

Almost surely, 2^{231545551543332} is an apocalyptic number.

It is an amenable number.

231545551543332 is an abundant number, since it is smaller than the sum of its proper divisors (352550799472860).

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

231545551543332 is a wasteful number, since it uses less digits than its factorization.

231545551543332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775355748 (or 5775355746 counting only the distinct ones).

The product of its digits is 16200000, while the sum is 51.

The spelling of 231545551543332 in words is "two hundred thirty-one trillion, five hundred forty-five billion, five hundred fifty-one million, five hundred forty-three thousand, three hundred thirty-two".