1021312013 has 8 divisors (see below), whose sum is σ = 1026432000. Its totient is φ = 1016205568.

The previous prime is 1021311983. The next prime is 1021312027. The reversal of 1021312013 is 3102131201.

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 1021312013 - 2¹⁴ = 1021295629 is a prime.

It is a super-2 number, since 2×1021312013² = 2086156455796224338, 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 (1021342013) 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, 168998 + ... + 174936.

It is an arithmetic number, because the mean of its divisors is an integer number (128304000).

Almost surely, 2^1021312013 is an apocalyptic number.

It is an amenable number.

1021312013 is a deficient number, since it is larger than the sum of its proper divisors (5119987).

1021312013 is an equidigital number, since it uses as much as digits as its factorization.

1021312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6771.

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

The square root of 1021312013 is about 31957.9726046569. The cubic root of 1021312013 is about 1007.0541266248.

Adding to 1021312013 its reverse (3102131201), we get a palindrome (4123443214).

It can be divided in two parts, 102131201 and 3, that multiplied together give a palindrome (306393603).

The spelling of 1021312013 in words is "one billion, twenty-one million, three hundred twelve thousand, thirteen".