20111011000002 has 48 divisors (see below), whose sum is σ = 49395465624960. Its totient is φ = 5862318994656.

The previous prime is 20111010999979. The next prime is 20111011000027. The reversal of 20111011000002 is 20000011011102.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2261692698 + ... + 2261701589.

It is an arithmetic number, because the mean of its divisors is an integer number (1029072200520).

Almost surely, 2^{20111011000002} is an apocalyptic number.

20111011000002 is an abundant number, since it is smaller than the sum of its proper divisors (29284454624958).

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

20111011000002 is a wasteful number, since it uses less digits than its factorization.

20111011000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523394327 (or 4523394324 counting only the distinct ones).

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

Adding to 20111011000002 its reverse (20000011011102), we get a palindrome (40111022011104).

It can be divided in two parts, 2011101 and 1000002, that added together give a palindrome (3011103).

The spelling of 20111011000002 in words is "twenty trillion, one hundred eleven billion, eleven million, two", and thus it is an aban number.