203120113140 has 144 divisors (see below), whose sum is σ = 704705863680. Its totient is φ = 46390786560.

The previous prime is 203120113061. The next prime is 203120113159. The reversal of 203120113140 is 41311021302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1548520 + ... + 1674560.

It is an arithmetic number, because the mean of its divisors is an integer number (4893790720).

Almost surely, 2^203120113140 is an apocalyptic number.

203120113140 is a gapful number since it is divisible by the number (20) 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 203120113140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352352931840).

203120113140 is an abundant number, since it is smaller than the sum of its proper divisors (501585750540).

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

203120113140 is a wasteful number, since it uses less digits than its factorization.

203120113140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127342 (or 127337 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 203120113140 its reverse (41311021302), we get a palindrome (244431134442).

The spelling of 203120113140 in words is "two hundred three billion, one hundred twenty million, one hundred thirteen thousand, one hundred forty".