231245215130143 has 8 divisors (see below), whose sum is σ = 236701911600000. Its totient is φ = 225792105058968.

The previous prime is 231245215130131. The next prime is 231245215130159. The reversal of 231245215130143 is 341031512542132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231245215130143 - 2¹³ = 231245215121951 is a prime.

It is a super-2 number, since 2×231245215130143² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231245215130123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896469193 + ... + 896727106.

It is an arithmetic number, because the mean of its divisors is an integer number (29587738950000).

Almost surely, 2^{231245215130143} is an apocalyptic number.

231245215130143 is a deficient number, since it is larger than the sum of its proper divisors (5456696469857).

231245215130143 is a wasteful number, since it uses less digits than its factorization.

231245215130143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793199341.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 231245215130143 its reverse (341031512542132), we get a palindrome (572276727672275).

The spelling of 231245215130143 in words is "two hundred thirty-one trillion, two hundred forty-five billion, two hundred fifteen million, one hundred thirty thousand, one hundred forty-three".