11021331000 has 64 divisors (see below), whose sum is σ = 34386562080. Its totient is φ = 2939020800.

The previous prime is 11021330981. The next prime is 11021331011. The reversal of 11021331000 is 13312011.

It is a super-2 number, since 2×11021331000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 1833889 + ... + 1839888.

Almost surely, 2^11021331000 is an apocalyptic number.

11021331000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021331000 is an abundant number, since it is smaller than the sum of its proper divisors (23365231080).

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

11021331000 is a wasteful number, since it uses less digits than its factorization.

11021331000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673801 (or 3673787 counting only the distinct ones).

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

Adding to 11021331000 its reverse (13312011), we get a palindrome (11034643011).

The spelling of 11021331000 in words is "eleven billion, twenty-one million, three hundred thirty-one thousand".