231545002104 has 96 divisors (see below), whose sum is σ = 675683888880. Its totient is φ = 71208294912.

The previous prime is 231545002081. The next prime is 231545002153. The reversal of 231545002104 is 401200545132.

231545002104 is a `hidden beast` number, since 2 + 3 + 1 + 54 + 500 + 2 + 104 = 666.

It is a super-2 number, since 2×231545002104² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1803387 + ... + 1927509.

Almost surely, 2^231545002104 is an apocalyptic number.

231545002104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231545002104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337841944440).

231545002104 is an abundant number, since it is smaller than the sum of its proper divisors (444138886776).

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

231545002104 is a wasteful number, since it uses less digits than its factorization.

231545002104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126141 (or 126134 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 231545002104 its reverse (401200545132), we get a palindrome (632745547236).

The spelling of 231545002104 in words is "two hundred thirty-one billion, five hundred forty-five million, two thousand, one hundred four".