1020231013 has 8 divisors (see below), whose sum is σ = 1088493120. Its totient is φ = 952885440.

The previous prime is 1020230993. The next prime is 1020231041. The reversal of 1020231013 is 3101320201.

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 1020231013 - 2⁹ = 1020230501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020230984 and 1020231002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020231313) 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, 226833 + ... + 231286.

It is an arithmetic number, because the mean of its divisors is an integer number (136061640).

Almost surely, 2^1020231013 is an apocalyptic number.

It is an amenable number.

1020231013 is a deficient number, since it is larger than the sum of its proper divisors (68262107).

1020231013 is a wasteful number, since it uses less digits than its factorization.

1020231013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458267.

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

The square root of 1020231013 is about 31941.0552893921. The cubic root of 1020231013 is about 1006.6986982459.

Adding to 1020231013 its reverse (3101320201), we get a palindrome (4121551214).

The spelling of 1020231013 in words is "one billion, twenty million, two hundred thirty-one thousand, thirteen".