201042021011 has 32 divisors (see below), whose sum is σ = 221078108160. Its totient is φ = 181703942784.

The previous prime is 201042020983. The next prime is 201042021043. The reversal of 201042021011 is 110120240102.

It is a happy number.

It is not a de Polignac number, because 201042021011 - 2⁶ = 201042020947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201042021311) 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, 82971146 + ... + 82973568.

It is an arithmetic number, because the mean of its divisors is an integer number (6908690880).

Almost surely, 2^201042021011 is an apocalyptic number.

201042021011 is a deficient number, since it is larger than the sum of its proper divisors (20036087149).

201042021011 is a wasteful number, since it uses less digits than its factorization.

201042021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201042021011 its reverse (110120240102), we get a palindrome (311162261113).

The spelling of 201042021011 in words is "two hundred one billion, forty-two million, twenty-one thousand, eleven".