101211001011011 has 4 divisors (see below), whose sum is σ = 102139542304800. Its totient is φ = 100282459717224.

The previous prime is 101211001010953. The next prime is 101211001011103. The reversal of 101211001011011 is 110110100112101.

It is a happy number.

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 101211001011011 - 2¹⁴ = 101211000994627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101211001010983 and 101211001011001.

It is not an unprimeable number, because it can be changed into a prime (101211001811011) 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, 464270646731 + ... + 464270646948.

It is an arithmetic number, because the mean of its divisors is an integer number (25534885576200).

Almost surely, 2^{101211001011011} is an apocalyptic number.

101211001011011 is a deficient number, since it is larger than the sum of its proper divisors (928541293789).

101211001011011 is an equidigital number, since it uses as much as digits as its factorization.

101211001011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928541293788.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 101211001011011 its reverse (110110100112101), we get a palindrome (211321101123112).

The spelling of 101211001011011 in words is "one hundred one trillion, two hundred eleven billion, one million, eleven thousand, eleven".