1013313263 has 8 divisors (see below), whose sum is σ = 1066959600. Its totient is φ = 959698368.

The previous prime is 1013313241. The next prime is 1013313269. The reversal of 1013313263 is 3623133101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1013313263 - 2⁶ = 1013313199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013313269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89045 + ... + 99777.

It is an arithmetic number, because the mean of its divisors is an integer number (133369950).

Almost surely, 2^1013313263 is an apocalyptic number.

1013313263 is a deficient number, since it is larger than the sum of its proper divisors (53646337).

1013313263 is a wasteful number, since it uses less digits than its factorization.

1013313263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15721.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 1013313263 is about 31832.5817834495. The cubic root of 1013313263 is about 1004.4182050489.

Adding to 1013313263 its reverse (3623133101), we get a palindrome (4636446364).

The spelling of 1013313263 in words is "one billion, thirteen million, three hundred thirteen thousand, two hundred sixty-three".