1011020200 has 48 divisors (see below), whose sum is σ = 2452834080. Its totient is φ = 386823360.

The previous prime is 1011020173. The next prime is 1011020221. The reversal of 1011020200 is 20201101.

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, 105294 + ... + 114493.

It is an arithmetic number, because the mean of its divisors is an integer number (51100710).

Almost surely, 2^1011020200 is an apocalyptic number.

1011020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011020200 is an abundant number, since it is smaller than the sum of its proper divisors (1441813880).

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

1011020200 is a wasteful number, since it uses less digits than its factorization.

1011020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219826 (or 219817 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1011020200 is about 31796.5438373418. The cubic root of 1011020200 is about 1003.6599881443.

Adding to 1011020200 its reverse (20201101), we get a palindrome (1031221301).

The spelling of 1011020200 in words is "one billion, eleven million, twenty thousand, two hundred".