231481942319 has 8 divisors (see below), whose sum is σ = 233937810288. Its totient is φ = 229029289600.

The previous prime is 231481942313. The next prime is 231481942333. The reversal of 231481942319 is 913249184132.

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 231481942319 - 2¹² = 231481938223 is a prime.

It is a super-2 number, since 2×231481942319² (a number of 24 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 (231481942313) 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, 658922 + ... + 947175.

It is an arithmetic number, because the mean of its divisors is an integer number (29242226286).

Almost surely, 2^231481942319 is an apocalyptic number.

231481942319 is a deficient number, since it is larger than the sum of its proper divisors (2455867969).

231481942319 is a wasteful number, since it uses less digits than its factorization.

231481942319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607625.

The product of its digits is 373248, while the sum is 47.

The spelling of 231481942319 in words is "two hundred thirty-one billion, four hundred eighty-one million, nine hundred forty-two thousand, three hundred nineteen".