231236490480 has 40 divisors (see below), whose sum is σ = 716833121232. Its totient is φ = 61663064064.

The previous prime is 231236490473. The next prime is 231236490481. The reversal of 231236490480 is 84094632132.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231236490481) 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, 481742449 + ... + 481742928.

Almost surely, 2^231236490480 is an apocalyptic number.

231236490480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231236490480 is an abundant number, since it is smaller than the sum of its proper divisors (485596630752).

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

231236490480 is a wasteful number, since it uses less digits than its factorization.

231236490480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963485393 (or 963485387 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 231236490480 in words is "two hundred thirty-one billion, two hundred thirty-six million, four hundred ninety thousand, four hundred eighty".