123201120140 has 96 divisors (see below), whose sum is σ = 298763372544. Its totient is φ = 41800872960.

The previous prime is 123201120131. The next prime is 123201120157. The reversal of 123201120140 is 41021102321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33322772 + ... + 33326468.

It is an arithmetic number, because the mean of its divisors is an integer number (3112118464).

Almost surely, 2^123201120140 is an apocalyptic number.

123201120140 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 123201120140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149381686272).

123201120140 is an abundant number, since it is smaller than the sum of its proper divisors (175562252404).

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

123201120140 is a wasteful number, since it uses less digits than its factorization.

123201120140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127 (or 6125 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 123201120140 its reverse (41021102321), we get a palindrome (164222222461).

The spelling of 123201120140 in words is "one hundred twenty-three billion, two hundred one million, one hundred twenty thousand, one hundred forty".