203144320130 has 64 divisors (see below), whose sum is σ = 395934480000. Its totient is φ = 74760956928.

The previous prime is 203144320121. The next prime is 203144320163. The reversal of 203144320130 is 31023441302.

It is a super-2 number, since 2×203144320130² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203144320096 and 203144320105.

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, 1738796 + ... + 1851944.

It is an arithmetic number, because the mean of its divisors is an integer number (6186476250).

Almost surely, 2^203144320130 is an apocalyptic number.

203144320130 is a deficient number, since it is larger than the sum of its proper divisors (192790159870).

203144320130 is a wasteful number, since it uses less digits than its factorization.

203144320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113411.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 203144320130 its reverse (31023441302), we get a palindrome (234167761432).

The spelling of 203144320130 in words is "two hundred three billion, one hundred forty-four million, three hundred twenty thousand, one hundred thirty".