1023512713 has 4 divisors (see below), whose sum is σ = 1024199748. Its totient is φ = 1022825680.

The previous prime is 1023512687. The next prime is 1023512723. The reversal of 1023512713 is 3172153201.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 896882704 + 126630009 = 29948^2 + 11253^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023512713 - 2⁹ = 1023512201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023512723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341278 + ... + 344263.

It is an arithmetic number, because the mean of its divisors is an integer number (256049937).

Almost surely, 2^1023512713 is an apocalyptic number.

It is an amenable number.

1023512713 is a deficient number, since it is larger than the sum of its proper divisors (687035).

1023512713 is an equidigital number, since it uses as much as digits as its factorization.

1023512713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687034.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1023512713 is about 31992.3852346148. The cubic root of 1023512713 is about 1007.7769335202.

Adding to 1023512713 its reverse (3172153201), we get a palindrome (4195665914).

The spelling of 1023512713 in words is "one billion, twenty-three million, five hundred twelve thousand, seven hundred thirteen".