1013201020 has 96 divisors (see below), whose sum is σ = 2485800576. Its totient is φ = 343449600.

The previous prime is 1013201017. The next prime is 1013201069. The reversal of 1013201020 is 201023101.

1013201020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1013200988 and 1013201006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178425 + ... + 184015.

It is an arithmetic number, because the mean of its divisors is an integer number (25893756).

Almost surely, 2^1013201020 is an apocalyptic number.

1013201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013201020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1242900288).

1013201020 is an abundant number, since it is smaller than the sum of its proper divisors (1472599556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1013201020 is a wasteful number, since it uses less digits than its factorization.

1013201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671 (or 5669 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1013201020 is about 31830.8187139445. The cubic root of 1013201020 is about 1004.3811177764.

Adding to 1013201020 its reverse (201023101), we get a palindrome (1214224121).

The spelling of 1013201020 in words is "one billion, thirteen million, two hundred one thousand, twenty".