1323742743 has 12 divisors (see below), whose sum is σ = 1982890728. Its totient is φ = 882495000.

The previous prime is 1323742741. The next prime is 1323742751. The reversal of 1323742743 is 3472473231.

1323742743 is a `hidden beast` number, since 13 + 2 + 374 + 274 + 3 = 666.

It is not a de Polignac number, because 1323742743 - 2¹ = 1323742741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1323742698 and 1323742707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323742741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2723508 + ... + 2723993.

It is an arithmetic number, because the mean of its divisors is an integer number (165240894).

Almost surely, 2^1323742743 is an apocalyptic number.

1323742743 is a deficient number, since it is larger than the sum of its proper divisors (659147985).

1323742743 is an frugal number, since it uses more digits than its factorization.

1323742743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5447516 (or 5447504 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

The square root of 1323742743 is about 36383.2755947015. The cubic root of 1323742743 is about 1097.9971109841.

The spelling of 1323742743 in words is "one billion, three hundred twenty-three million, seven hundred forty-two thousand, seven hundred forty-three".