1021113030 has 128 divisors (see below), whose sum is σ = 2921619456. Its totient is φ = 223488000.

The previous prime is 1021113001. The next prime is 1021113053. The reversal of 1021113030 is 303111201.

It is a junction number, because it is equal to n+sod(n) for n = 1021112997 and 1021113015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 656734 + ... + 658286.

It is an arithmetic number, because the mean of its divisors is an integer number (22825152).

Almost surely, 2^1021113030 is an apocalyptic number.

1021113030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021113030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460809728).

1021113030 is an abundant number, since it is smaller than the sum of its proper divisors (1900506426).

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

1021113030 is a wasteful number, since it uses less digits than its factorization.

1021113030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702.

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

The square root of 1021113030 is about 31954.8592548927. The cubic root of 1021113030 is about 1006.9887206685.

Adding to 1021113030 its reverse (303111201), we get a palindrome (1324224231).

The spelling of 1021113030 in words is "one billion, twenty-one million, one hundred thirteen thousand, thirty".