1012321013 has 4 divisors (see below), whose sum is σ = 1104350208. Its totient is φ = 920291820.

The previous prime is 1012321001. The next prime is 1012321031. The reversal of 1012321013 is 3101232101.

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 1012321013 - 2⁶ = 1012320949 is a prime.

It is a super-2 number, since 2×1012321013² = 2049587666722692338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012321033) 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, 46014581 + ... + 46014602.

It is an arithmetic number, because the mean of its divisors is an integer number (276087552).

Almost surely, 2^1012321013 is an apocalyptic number.

It is an amenable number.

1012321013 is a deficient number, since it is larger than the sum of its proper divisors (92029195).

1012321013 is an equidigital number, since it uses as much as digits as its factorization.

1012321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92029194.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1012321013 is about 31816.9925197213. The cubic root of 1012321013 is about 1004.0902513669.

Adding to 1012321013 its reverse (3101232101), we get a palindrome (4113553114).

It can be divided in two parts, 101232101 and 3, that multiplied together give a palindrome (303696303).

The spelling of 1012321013 in words is "one billion, twelve million, three hundred twenty-one thousand, thirteen".