231200444542 has 16 divisors (see below), whose sum is σ = 353323260864. Its totient is φ = 113435028000.

The previous prime is 231200444491. The next prime is 231200444597. The reversal of 231200444542 is 245444002132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2199334 + ... + 2302057.

It is an arithmetic number, because the mean of its divisors is an integer number (22082703804).

Almost surely, 2^231200444542 is an apocalyptic number.

231200444542 is a deficient number, since it is larger than the sum of its proper divisors (122122816322).

231200444542 is a wasteful number, since it uses less digits than its factorization.

231200444542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501875.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 231200444542 its reverse (245444002132), we get a palindrome (476644446674).

The spelling of 231200444542 in words is "two hundred thirty-one billion, two hundred million, four hundred forty-four thousand, five hundred forty-two".