1023311013 has 4 divisors (see below), whose sum is σ = 1364414688. Its totient is φ = 682207340.

The previous prime is 1023311011. The next prime is 1023311017. The reversal of 1023311013 is 3101133201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1023311013 - 2¹ = 1023311011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023310983 and 1023311001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023311011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170551833 + ... + 170551838.

It is an arithmetic number, because the mean of its divisors is an integer number (341103672).

Almost surely, 2^1023311013 is an apocalyptic number.

It is an amenable number.

1023311013 is a deficient number, since it is larger than the sum of its proper divisors (341103675).

1023311013 is an equidigital number, since it uses as much as digits as its factorization.

1023311013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341103674.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1023311013 is about 31989.2327666670. The cubic root of 1023311013 is about 1007.7107295025.

Adding to 1023311013 its reverse (3101133201), we get a palindrome (4124444214).

The spelling of 1023311013 in words is "one billion, twenty-three million, three hundred eleven thousand, thirteen".