1020200112011 has 8 divisors (see below), whose sum is σ = 1021042611264. Its totient is φ = 1019357726400.

The previous prime is 1020200111993. The next prime is 1020200112067. The reversal of 1020200112011 is 1102110020201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020200112011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020200111983 and 1020200112001.

It is not an unprimeable number, because it can be changed into a prime (1020200112091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35417831 + ... + 35446623.

It is an arithmetic number, because the mean of its divisors is an integer number (127630326408).

Almost surely, 2^{1020200112011} is an apocalyptic number.

1020200112011 is a deficient number, since it is larger than the sum of its proper divisors (842499253).

1020200112011 is a wasteful number, since it uses less digits than its factorization.

1020200112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56821.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020200112011 its reverse (1102110020201), we get a palindrome (2122310132212).

The spelling of 1020200112011 in words is "one trillion, twenty billion, two hundred million, one hundred twelve thousand, eleven".