1020031113 has 8 divisors (see below), whose sum is σ = 1360348000. Its totient is φ = 679867488.

The previous prime is 1020031109. The next prime is 1020031141. The reversal of 1020031113 is 3111300201.

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

It is not a de Polignac number, because 1020031113 - 2² = 1020031109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020031183) 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, 21763 + ... + 50136.

It is an arithmetic number, because the mean of its divisors is an integer number (170043500).

Almost surely, 2^1020031113 is an apocalyptic number.

It is an amenable number.

1020031113 is a deficient number, since it is larger than the sum of its proper divisors (340316887).

1020031113 is an equidigital number, since it uses as much as digits as its factorization.

1020031113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76631.

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

The square root of 1020031113 is about 31937.9259345375. The cubic root of 1020031113 is about 1006.6329444405.

Adding to 1020031113 its reverse (3111300201), we get a palindrome (4131331314).

The spelling of 1020031113 in words is "one billion, twenty million, thirty-one thousand, one hundred thirteen".