231531540334100 has 36 divisors (see below), whose sum is σ = 528866781609600. Its totient is φ = 87738267915360.

The previous prime is 231531540334099. The next prime is 231531540334121. The reversal of 231531540334100 is 1433045135132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60929350820 + ... + 60929354619.

It is an arithmetic number, because the mean of its divisors is an integer number (14690743933600).

Almost surely, 2^{231531540334100} is an apocalyptic number.

231531540334100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231531540334100 is an abundant number, since it is smaller than the sum of its proper divisors (297335241275500).

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

231531540334100 is a wasteful number, since it uses less digits than its factorization.

231531540334100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121858705472 (or 121858705465 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 231531540334100 its reverse (1433045135132), we get a palindrome (232964585469232).

The spelling of 231531540334100 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, five hundred forty million, three hundred thirty-four thousand, one hundred".