101323320144 has 40 divisors (see below), whose sum is σ = 268826291040. Its totient is φ = 32861616768.

The previous prime is 101323320113. The next prime is 101323320149. The reversal of 101323320144 is 441023323101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101323320149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28523934 + ... + 28527485.

It is an arithmetic number, because the mean of its divisors is an integer number (6720657276).

Almost surely, 2^101323320144 is an apocalyptic number.

It is an amenable number.

101323320144 is an abundant number, since it is smaller than the sum of its proper divisors (167502970896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101323320144 is a wasteful number, since it uses less digits than its factorization.

101323320144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57051467 (or 57051461 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 101323320144 its reverse (441023323101), we get a palindrome (542346643245).

The spelling of 101323320144 in words is "one hundred one billion, three hundred twenty-three million, three hundred twenty thousand, one hundred forty-four".