1011121300 has 36 divisors (see below), whose sum is σ = 2507582560. Its totient is φ = 346669920.

The previous prime is 1011121297. The next prime is 1011121343. The reversal of 1011121300 is 31211101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 721530 + ... + 722929.

Almost surely, 2^1011121300 is an apocalyptic number.

1011121300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011121300 is an abundant number, since it is smaller than the sum of its proper divisors (1496461260).

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

1011121300 is a wasteful number, since it uses less digits than its factorization.

1011121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444480 (or 1444473 counting only the distinct ones).

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

The square root of 1011121300 is about 31798.1335930271. The cubic root of 1011121300 is about 1003.6934416937.

Adding to 1011121300 its reverse (31211101), we get a palindrome (1042332401).

The spelling of 1011121300 in words is "one billion, eleven million, one hundred twenty-one thousand, three hundred".