211001133023011 has 4 divisors (see below), whose sum is σ = 211930653433032. Its totient is φ = 210071612612992.

The previous prime is 211001133022997. The next prime is 211001133023029. The reversal of 211001133023011 is 110320331100112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211001133023011 - 2⁹ = 211001133022499 is a prime.

It is a super-2 number, since 2×211001133023011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211001133023011.

It is not an unprimeable number, because it can be changed into a prime (211001133023311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464760204670 + ... + 464760205123.

It is an arithmetic number, because the mean of its divisors is an integer number (52982663358258).

Almost surely, 2^{211001133023011} is an apocalyptic number.

211001133023011 is a deficient number, since it is larger than the sum of its proper divisors (929520410021).

211001133023011 is an equidigital number, since it uses as much as digits as its factorization.

211001133023011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929520410020.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 211001133023011 its reverse (110320331100112), we get a palindrome (321321464123123).

The spelling of 211001133023011 in words is "two hundred eleven trillion, one billion, one hundred thirty-three million, twenty-three thousand, eleven".