231245230143 has 32 divisors (see below), whose sum is σ = 332205391872. Its totient is φ = 142663356000.

The previous prime is 231245230127. The next prime is 231245230147. The reversal of 231245230143 is 341032542132.

It is not a de Polignac number, because 231245230143 - 2⁴ = 231245230127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231245230143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231245230147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8651746 + ... + 8678432.

It is an arithmetic number, because the mean of its divisors is an integer number (10381418496).

Almost surely, 2^231245230143 is an apocalyptic number.

231245230143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

231245230143 is a deficient number, since it is larger than the sum of its proper divisors (100960161729).

231245230143 is a wasteful number, since it uses less digits than its factorization.

231245230143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30795.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 231245230143 its reverse (341032542132), we get a palindrome (572277772275).

The spelling of 231245230143 in words is "two hundred thirty-one billion, two hundred forty-five million, two hundred thirty thousand, one hundred forty-three".