1011102020000 has 60 divisors (see below), whose sum is σ = 2487462683706. Its totient is φ = 404440800000.

The previous prime is 1011102019999. The next prime is 1011102020003. The reversal of 1011102020000 is 202011101.

It can be written as a sum of positive squares in 5 ways, for example, as 602604304 + 1010499415696 = 24548^2 + 1005236^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1011102020000.

It is not an unprimeable number, because it can be changed into a prime (1011102020003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 25257551 + ... + 25297550.

Almost surely, 2^{1011102020000} is an apocalyptic number.

1011102020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011102020000 is an abundant number, since it is smaller than the sum of its proper divisors (1476360663706).

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

1011102020000 is an frugal number, since it uses more digits than its factorization.

1011102020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50555131 (or 50555108 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1011102020000 its reverse (202011101), we get a palindrome (1011304031101).

The spelling of 1011102020000 in words is "one trillion, eleven billion, one hundred two million, twenty thousand".