211020101001011 has 8 divisors (see below), whose sum is σ = 211087816192704. Its totient is φ = 210952388350440.

The previous prime is 211020101001001. The next prime is 211020101001077. The reversal of 211020101001011 is 110100101020112.

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

It is a cyclic number.

It is not a de Polignac number, because 211020101001011 - 2²² = 211020096806707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211020101000983 and 211020101001001.

It is not an unprimeable number, because it can be changed into a prime (211020101001001) 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, 173075756 + ... + 174290726.

It is an arithmetic number, because the mean of its divisors is an integer number (26385977024088).

Almost surely, 2^{211020101001011} is an apocalyptic number.

211020101001011 is a deficient number, since it is larger than the sum of its proper divisors (67715191693).

211020101001011 is a wasteful number, since it uses less digits than its factorization.

211020101001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270561.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211020101001011 its reverse (110100101020112), we get a palindrome (321120202021123).

The spelling of 211020101001011 in words is "two hundred eleven trillion, twenty billion, one hundred one million, one thousand, eleven".