20011000011192 has 48 divisors (see below), whose sum is σ = 54369610049040. Its totient is φ = 6649022360448.

The previous prime is 20011000011137. The next prime is 20011000011229. The reversal of 20011000011192 is 29111000011002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 443955988 + ... + 444001059.

It is an arithmetic number, because the mean of its divisors is an integer number (1132700209355).

Almost surely, 2^{20011000011192} is an apocalyptic number.

It is an amenable number.

20011000011192 is an abundant number, since it is smaller than the sum of its proper divisors (34358610037848).

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

20011000011192 is a wasteful number, since it uses less digits than its factorization.

20011000011192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887957372 (or 887957365 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 20011000011192 its reverse (29111000011002), we get a palindrome (49122000022194).

The spelling of 20011000011192 in words is "twenty trillion, eleven billion, eleven thousand, one hundred ninety-two".