102123231311 has 16 divisors (see below), whose sum is σ = 104708630400. Its totient is φ = 99571003488.

The previous prime is 102123231307. The next prime is 102123231319. The reversal of 102123231311 is 113132321201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102123231311 - 2² = 102123231307 is a prime.

It is a super-3 number, since 3×102123231311³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102123231319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7434896 + ... + 7448618.

It is an arithmetic number, because the mean of its divisors is an integer number (6544289400).

Almost surely, 2^102123231311 is an apocalyptic number.

102123231311 is a deficient number, since it is larger than the sum of its proper divisors (2585399089).

102123231311 is a wasteful number, since it uses less digits than its factorization.

102123231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14918.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 102123231311 its reverse (113132321201), we get a palindrome (215255552512).

The spelling of 102123231311 in words is "one hundred two billion, one hundred twenty-three million, two hundred thirty-one thousand, three hundred eleven".