1012023313 has 6 divisors (see below), whose sum is σ = 1177251666. Its totient is φ = 867448512.

The previous prime is 1012023293. The next prime is 1012023329. The reversal of 1012023313 is 3133202101.

It can be written as a sum of positive squares in only one way, i.e., 967707664 + 44315649 = 31108^2 + 6657^2 .

It is not a de Polignac number, because 1012023313 - 2⁵ = 1012023281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012023343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10326720 + ... + 10326817.

It is an arithmetic number, because the mean of its divisors is an integer number (196208611).

Almost surely, 2^1012023313 is an apocalyptic number.

It is an amenable number.

1012023313 is a deficient number, since it is larger than the sum of its proper divisors (165228353).

1012023313 is an equidigital number, since it uses as much as digits as its factorization.

1012023313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20653551 (or 20653544 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1012023313 is about 31812.3138580016. The cubic root of 1012023313 is about 1003.9918152087.

Adding to 1012023313 its reverse (3133202101), we get a palindrome (4145225414).

It can be divided in two parts, 10120 and 23313, that added together give a palindrome (33433).

The spelling of 1012023313 in words is "one billion, twelve million, twenty-three thousand, three hundred thirteen".