1011133020 has 24 divisors (see below), whose sum is σ = 2831172624. Its totient is φ = 269635456.

The previous prime is 1011133009. The next prime is 1011133031. The reversal of 1011133020 is 203311101.

It is an interprime number because it is at equal distance from previous prime (1011133009) and next prime (1011133031).

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

It is a junction number, because it is equal to n+sod(n) for n = 1011132987 and 1011133005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8426049 + ... + 8426168.

It is an arithmetic number, because the mean of its divisors is an integer number (117965526).

Almost surely, 2^1011133020 is an apocalyptic number.

1011133020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011133020 is an abundant number, since it is smaller than the sum of its proper divisors (1820039604).

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

1011133020 is a wasteful number, since it uses less digits than its factorization.

1011133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16852229 (or 16852227 counting only the distinct ones).

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

The square root of 1011133020 is about 31798.3178800389. The cubic root of 1011133020 is about 1003.6973196464.

Adding to 1011133020 its reverse (203311101), we get a palindrome (1214444121).

The spelling of 1011133020 in words is "one billion, eleven million, one hundred thirty-three thousand, twenty".