101213123311 has 4 divisors (see below), whose sum is σ = 101253115224. Its totient is φ = 101173131400.

The previous prime is 101213123281. The next prime is 101213123321. The reversal of 101213123311 is 113321312101.

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 101213123311 - 2⁷ = 101213123183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101213123321) 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, 19992160 + ... + 19997221.

It is an arithmetic number, because the mean of its divisors is an integer number (25313278806).

Almost surely, 2^101213123311 is an apocalyptic number.

101213123311 is a deficient number, since it is larger than the sum of its proper divisors (39991913).

101213123311 is an equidigital number, since it uses as much as digits as its factorization.

101213123311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39991912.

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

Adding to 101213123311 its reverse (113321312101), we get a palindrome (214534435412).

The spelling of 101213123311 in words is "one hundred one billion, two hundred thirteen million, one hundred twenty-three thousand, three hundred eleven".