743120231 has 6 divisors (see below), whose sum is σ = 864446040. Its totient is φ = 636960156.

The previous prime is 743120197. The next prime is 743120233. The reversal of 743120231 is 132021347.

It is a de Polignac number, because none of the positive numbers 2^k-743120231 is a prime.

It is a super-2 number, since 2×743120231² = 1104455355442986722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 743120197 and 743120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743120233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7582811 + ... + 7582908.

It is an arithmetic number, because the mean of its divisors is an integer number (144074340).

Almost surely, 2^743120231 is an apocalyptic number.

743120231 is a deficient number, since it is larger than the sum of its proper divisors (121325809).

743120231 is a wasteful number, since it uses less digits than its factorization.

743120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15165733 (or 15165726 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 743120231 is about 27260.2316754645. The cubic root of 743120231 is about 905.7736761825.

Adding to 743120231 its reverse (132021347), we get a palindrome (875141578).

The spelling of 743120231 in words is "seven hundred forty-three million, one hundred twenty thousand, two hundred thirty-one".