1012020313 has 8 divisors (see below), whose sum is σ = 1065958400. Its totient is φ = 958149648.

The previous prime is 1012020293. The next prime is 1012020341. The reversal of 1012020313 is 3130202101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012020313 is a prime.

It is a super-2 number, since 2×1012020313² = 2048370227849235938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012020293 and 1012020302.

It is not an unprimeable number, because it can be changed into a prime (1012020913) 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, 15583 + ... + 47611.

It is an arithmetic number, because the mean of its divisors is an integer number (133244800).

Almost surely, 2^1012020313 is an apocalyptic number.

It is an amenable number.

1012020313 is a deficient number, since it is larger than the sum of its proper divisors (53938087).

1012020313 is a wasteful number, since it uses less digits than its factorization.

1012020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33711.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1012020313 is about 31812.2667064137. The cubic root of 1012020313 is about 1003.9908231438.

Adding to 1012020313 its reverse (3130202101), we get a palindrome (4142222414).

The spelling of 1012020313 in words is "one billion, twelve million, twenty thousand, three hundred thirteen".