123101131120 has 120 divisors (see below), whose sum is σ = 314783727552. Its totient is φ = 44737144320.

The previous prime is 123101131063. The next prime is 123101131213. The reversal of 123101131120 is 21131101321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 123101131094 and 123101131103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23684362 + ... + 23689558.

Almost surely, 2^123101131120 is an apocalyptic number.

123101131120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123101131120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157391863776).

123101131120 is an abundant number, since it is smaller than the sum of its proper divisors (191682596432).

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

123101131120 is a wasteful number, since it uses less digits than its factorization.

123101131120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7679 (or 7662 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 123101131120 its reverse (21131101321), we get a palindrome (144232232441).

The spelling of 123101131120 in words is "one hundred twenty-three billion, one hundred one million, one hundred thirty-one thousand, one hundred twenty".