231043869719 has 4 divisors (see below), whose sum is σ = 248816475096. Its totient is φ = 213271264344.

The previous prime is 231043869709. The next prime is 231043869731. The reversal of 231043869719 is 917968340132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231043869719 - 2¹² = 231043865623 is a prime.

It is a super-2 number, since 2×231043869719² (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 (231043869709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8886302669 + ... + 8886302694.

It is an arithmetic number, because the mean of its divisors is an integer number (62204118774).

Almost surely, 2^231043869719 is an apocalyptic number.

231043869719 is a deficient number, since it is larger than the sum of its proper divisors (17772605377).

231043869719 is a wasteful number, since it uses less digits than its factorization.

231043869719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17772605376.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 231043869719 in words is "two hundred thirty-one billion, forty-three million, eight hundred sixty-nine thousand, seven hundred nineteen".