1011312200 has 24 divisors (see below), whose sum is σ = 2351301330. Its totient is φ = 404524800.

The previous prime is 1011312193. The next prime is 1011312223. The reversal of 1011312200 is 22131101.

It can be written as a sum of positive squares in 3 ways, for example, as 968827876 + 42484324 = 31126^2 + 6518^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2528081 + ... + 2528480.

Almost surely, 2^1011312200 is an apocalyptic number.

1011312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011312200 is an abundant number, since it is smaller than the sum of its proper divisors (1339989130).

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

1011312200 is a wasteful number, since it uses less digits than its factorization.

1011312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056577 (or 5056568 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1011312200 is about 31801.1351998635. The cubic root of 1011312200 is about 1003.7566035916.

Adding to 1011312200 its reverse (22131101), we get a palindrome (1033443301).

The spelling of 1011312200 in words is "one billion, eleven million, three hundred twelve thousand, two hundred".