731042115230231 has 4 divisors (see below), whose sum is σ = 835476703120272. Its totient is φ = 626607527340192.

The previous prime is 731042115230221. The next prime is 731042115230233. The reversal of 731042115230231 is 132032511240137.

It is a happy number.

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 731042115230231 - 2¹⁰ = 731042115229207 is a prime.

It is a super-2 number, since 2×731042115230231² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 731042115230191 and 731042115230200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731042115230233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52217293945010 + ... + 52217293945023.

It is an arithmetic number, because the mean of its divisors is an integer number (208869175780068).

Almost surely, 2^{731042115230231} is an apocalyptic number.

731042115230231 is a deficient number, since it is larger than the sum of its proper divisors (104434587890041).

731042115230231 is a wasteful number, since it uses less digits than its factorization.

731042115230231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104434587890040.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 731042115230231 its reverse (132032511240137), we get a palindrome (863074626470368).

The spelling of 731042115230231 in words is "seven hundred thirty-one trillion, forty-two billion, one hundred fifteen million, two hundred thirty thousand, two hundred thirty-one".