1021301013 has 4 divisors (see below), whose sum is σ = 1361734688. Its totient is φ = 680867340.

The previous prime is 1021301009. The next prime is 1021301051. The reversal of 1021301013 is 3101031201.

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 not a de Polignac number, because 1021301013 - 2² = 1021301009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021301013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021301003) 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, 170216833 + ... + 170216838.

It is an arithmetic number, because the mean of its divisors is an integer number (340433672).

Almost surely, 2^1021301013 is an apocalyptic number.

It is an amenable number.

1021301013 is a deficient number, since it is larger than the sum of its proper divisors (340433675).

1021301013 is an equidigital number, since it uses as much as digits as its factorization.

1021301013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340433674.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1021301013 is about 31957.8005031635. The cubic root of 1021301013 is about 1007.0505111331.

Adding to 1021301013 its reverse (3101031201), we get a palindrome (4122332214).

The spelling of 1021301013 in words is "one billion, twenty-one million, three hundred one thousand, thirteen".