231554425021532 has 12 divisors (see below), whose sum is σ = 406099246488936. Its totient is φ = 115526068881840.

The previous prime is 231554425021523. The next prime is 231554425021589. The reversal of 231554425021532 is 235120524455132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62785905158 + ... + 62785908845.

It is an arithmetic number, because the mean of its divisors is an integer number (33841603874078).

Almost surely, 2^{231554425021532} is an apocalyptic number.

It is an amenable number.

231554425021532 is a deficient number, since it is larger than the sum of its proper divisors (174544821467404).

231554425021532 is a wasteful number, since it uses less digits than its factorization.

231554425021532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125571814468 (or 125571814466 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 231554425021532 its reverse (235120524455132), we get a palindrome (466674949476664).

The spelling of 231554425021532 in words is "two hundred thirty-one trillion, five hundred fifty-four billion, four hundred twenty-five million, twenty-one thousand, five hundred thirty-two".