101011001020111 has 16 divisors (see below), whose sum is σ = 124321471561728. Its totient is φ = 79920638028000.

The previous prime is 101011001020103. The next prime is 101011001020187. The reversal of 101011001020111 is 111020100110101.

It is not a de Polignac number, because 101011001020111 - 2³ = 101011001020103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011001020211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80024436 + ... + 81276886.

It is an arithmetic number, because the mean of its divisors is an integer number (7770091972608).

Almost surely, 2^{101011001020111} is an apocalyptic number.

101011001020111 is a deficient number, since it is larger than the sum of its proper divisors (23310470541617).

101011001020111 is a wasteful number, since it uses less digits than its factorization.

101011001020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138742.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 101011001020111 its reverse (111020100110101), we get a palindrome (212031101130212).

The spelling of 101011001020111 in words is "one hundred one trillion, eleven billion, one million, twenty thousand, one hundred eleven".