1011020200111 has 32 divisors (see below), whose sum is σ = 1078673637888. Its totient is φ = 946315560960.

The previous prime is 1011020200097. The next prime is 1011020200123. The reversal of 1011020200111 is 1110020201101.

It is a cyclic number.

It is not a de Polignac number, because 1011020200111 - 2¹¹ = 1011020198063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011020201111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41684590 + ... + 41708836.

It is an arithmetic number, because the mean of its divisors is an integer number (33708551184).

Almost surely, 2^{1011020200111} is an apocalyptic number.

1011020200111 is a deficient number, since it is larger than the sum of its proper divisors (67653437777).

1011020200111 is a wasteful number, since it uses less digits than its factorization.

1011020200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24751.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1011020200111 its reverse (1110020201101), we get a palindrome (2121040401212).

The spelling of 1011020200111 in words is "one trillion, eleven billion, twenty million, two hundred thousand, one hundred eleven".