1023431723 has 2 divisors, whose sum is σ = 1023431724. Its totient is φ = 1023431722.

The previous prime is 1023431707. The next prime is 1023431741. The reversal of 1023431723 is 3271343201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1023431723 - 2⁴ = 1023431707 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023431692 and 1023431701.

It is not a weakly prime, because it can be changed into another prime (1023431753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511715861 + 511715862.

It is an arithmetic number, because the mean of its divisors is an integer number (511715862).

Almost surely, 2^1023431723 is an apocalyptic number.

1023431723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023431723 is an equidigital number, since it uses as much as digits as its factorization.

1023431723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 1023431723 is about 31991.1194396195. The cubic root of 1023431723 is about 1007.7503512069.

Adding to 1023431723 its reverse (3271343201), we get a palindrome (4294774924).

The spelling of 1023431723 in words is "one billion, twenty-three million, four hundred thirty-one thousand, seven hundred twenty-three".