1011102100002 has 32 divisors (see below), whose sum is σ = 2246973436800. Its totient is φ = 337022051184.

The previous prime is 1011102099991. The next prime is 1011102100007. The reversal of 1011102100002 is 2000012011101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1011102100007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1271043 + ... + 1907289.

It is an arithmetic number, because the mean of its divisors is an integer number (70217919900).

Almost surely, 2^{1011102100002} is an apocalyptic number.

1011102100002 is an abundant number, since it is smaller than the sum of its proper divisors (1235871336798).

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

1011102100002 is a wasteful number, since it uses less digits than its factorization.

1011102100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665687 (or 665681 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1011102100002 its reverse (2000012011101), we get a palindrome (3011114111103).

The spelling of 1011102100002 in words is "one trillion, eleven billion, one hundred two million, one hundred thousand, two".