11113021000 has 32 divisors (see below), whose sum is σ = 26004471480. Its totient is φ = 4445208000.

The previous prime is 11113020991. The next prime is 11113021001. The reversal of 11113021000 is 12031111.

It can be written as a sum of positive squares in 4 ways, for example, as 4574357956 + 6538663044 = 67634^2 + 80862^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11113021001) 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, 5555511 + ... + 5557510.

Almost surely, 2^11113021000 is an apocalyptic number.

11113021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11113021000 is an abundant number, since it is smaller than the sum of its proper divisors (14891450480).

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

11113021000 is a wasteful number, since it uses less digits than its factorization.

11113021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11113042 (or 11113028 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 11113021000 its reverse (12031111), we get a palindrome (11125052111).

It can be divided in two parts, 1111 and 3021000, that added together give a triangular number (3022111 = T₂₄₅₈).

The spelling of 11113021000 in words is "eleven billion, one hundred thirteen million, twenty-one thousand".