1011315020 has 48 divisors (see below), whose sum is σ = 2197280736. Its totient is φ = 390720000.

The previous prime is 1011315017. The next prime is 1011315031. The reversal of 1011315020 is 205131101.

1011315020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1011314986 and 1011315004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76715 + ... + 88925.

It is an arithmetic number, because the mean of its divisors is an integer number (45776682).

Almost surely, 2^1011315020 is an apocalyptic number.

1011315020 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 1011315020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098640368).

1011315020 is an abundant number, since it is smaller than the sum of its proper divisors (1185965716).

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

1011315020 is a wasteful number, since it uses less digits than its factorization.

1011315020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12362 (or 12360 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1011315020 is about 31801.1795378725. The cubic root of 1011315020 is about 1003.7575365680.

Adding to 1011315020 its reverse (205131101), we get a palindrome (1216446121).

The spelling of 1011315020 in words is "one billion, eleven million, three hundred fifteen thousand, twenty".