231533500134411 has 64 divisors (see below), whose sum is σ = 354732433735680. Its totient is φ = 149100209892000.

The previous prime is 231533500134403. The next prime is 231533500134413. The reversal of 231533500134411 is 114431005335132.

231533500134411 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 3 + 3 + 500 + 134 + 4 + 11 = 666.

It is not a de Polignac number, because 231533500134411 - 2³ = 231533500134403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231533500134413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7065178456 + ... + 7065211226.

It is an arithmetic number, because the mean of its divisors is an integer number (5542694277120).

Almost surely, 2^{231533500134411} is an apocalyptic number.

231533500134411 is a deficient number, since it is larger than the sum of its proper divisors (123198933601269).

231533500134411 is a wasteful number, since it uses less digits than its factorization.

231533500134411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48165 (or 48159 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 231533500134411 its reverse (114431005335132), we get a palindrome (345964505469543).

The spelling of 231533500134411 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, five hundred million, one hundred thirty-four thousand, four hundred eleven".