203530123130004 has 72 divisors (see below), whose sum is σ = 561323386958880. Its totient is φ = 61667701099200.

The previous prime is 203530123129987. The next prime is 203530123130017. The reversal of 203530123130004 is 400031321035302.

203530123130004 is a `hidden beast` number, since 2 + 0 + 3 + 530 + 123 + 1 + 3 + 0 + 0 + 0 + 4 = 666.

It is a super-2 number, since 2×203530123130004² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 203530123130004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30702394 + ... + 36738225.

Almost surely, 2^{203530123130004} is an apocalyptic number.

It is an amenable number.

203530123130004 is an abundant number, since it is smaller than the sum of its proper divisors (357793263828876).

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

203530123130004 is a wasteful number, since it uses less digits than its factorization.

203530123130004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67448261 (or 67448256 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 203530123130004 its reverse (400031321035302), we get a palindrome (603561444165306).

The spelling of 203530123130004 in words is "two hundred three trillion, five hundred thirty billion, one hundred twenty-three million, one hundred thirty thousand, four".