123043140222140 has 96 divisors (see below), whose sum is σ = 265105291336704. Its totient is φ = 47942048125440.

The previous prime is 123043140222077. The next prime is 123043140222199. The reversal of 123043140222140 is 41222041340321.

It is a super-2 number, since 2×123043140222140² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2069765897 + ... + 2069825343.

It is an arithmetic number, because the mean of its divisors is an integer number (2761513451424).

Almost surely, 2^{123043140222140} is an apocalyptic number.

123043140222140 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 123043140222140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132552645668352).

123043140222140 is an abundant number, since it is smaller than the sum of its proper divisors (142062151114564).

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

123043140222140 is a wasteful number, since it uses less digits than its factorization.

123043140222140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63387 (or 63385 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 123043140222140 its reverse (41222041340321), we get a palindrome (164265181562461).

The spelling of 123043140222140 in words is "one hundred twenty-three trillion, forty-three billion, one hundred forty million, two hundred twenty-two thousand, one hundred forty".