102101211311 has 4 divisors (see below), whose sum is σ = 111383139624. Its totient is φ = 92819283000.

The previous prime is 102101211307. The next prime is 102101211361. The reversal of 102101211311 is 113112101201.

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 102101211311 - 2² = 102101211307 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 (102101211361) 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, 4640964140 + ... + 4640964161.

It is an arithmetic number, because the mean of its divisors is an integer number (27845784906).

Almost surely, 2^102101211311 is an apocalyptic number.

102101211311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102101211311 is a deficient number, since it is larger than the sum of its proper divisors (9281928313).

102101211311 is an equidigital number, since it uses as much as digits as its factorization.

102101211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9281928312.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 102101211311 its reverse (113112101201), we get a palindrome (215213312512).

The spelling of 102101211311 in words is "one hundred two billion, one hundred one million, two hundred eleven thousand, three hundred eleven".