203103130140 has 72 divisors (see below), whose sum is σ = 618272102448. Its totient is φ = 53968078080.

The previous prime is 203103130091. The next prime is 203103130147. The reversal of 203103130140 is 41031301302.

203103130140 is a `hidden beast` number, since 2 + 0 + 310 + 313 + 0 + 1 + 40 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203103130147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1957162 + ... + 2058321.

It is an arithmetic number, because the mean of its divisors is an integer number (8587112534).

Almost surely, 2^203103130140 is an apocalyptic number.

203103130140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203103130140 is an abundant number, since it is smaller than the sum of its proper divisors (415168972308).

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

203103130140 is a wasteful number, since it uses less digits than its factorization.

203103130140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015779 (or 4015774 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203103130140 its reverse (41031301302), we get a palindrome (244134431442).

The spelling of 203103130140 in words is "two hundred three billion, one hundred three million, one hundred thirty thousand, one hundred forty".