100123011311 has 4 divisors (see below), whose sum is σ = 100259605512. Its totient is φ = 99986417112.

The previous prime is 100123011253. The next prime is 100123011341. The reversal of 100123011311 is 113110321001.

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 100123011311 - 2¹⁰ = 100123010287 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 (100123011341) 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, 68296001 + ... + 68297466.

It is an arithmetic number, because the mean of its divisors is an integer number (25064901378).

Almost surely, 2^100123011311 is an apocalyptic number.

100123011311 is a deficient number, since it is larger than the sum of its proper divisors (136594201).

100123011311 is an equidigital number, since it uses as much as digits as its factorization.

100123011311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136594200.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 100123011311 its reverse (113110321001), we get a palindrome (213233332312).

The spelling of 100123011311 in words is "one hundred billion, one hundred twenty-three million, eleven thousand, three hundred eleven".