203130023421402 has 192 divisors, whose sum is σ = 550412138615040. Its totient is φ = 52597923840000.

The previous prime is 203130023421361. The next prime is 203130023421427. The reversal of 203130023421402 is 204124320031302.

203130023421402 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 3 + 0 + 0 + 234 + 21 + 402 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1957469374 + ... + 1957573142.

It is an arithmetic number, because the mean of its divisors is an integer number (2866729888620).

Almost surely, 2^{203130023421402} is an apocalyptic number.

203130023421402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 203130023421402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275206069307520).

203130023421402 is an abundant number, since it is smaller than the sum of its proper divisors (347282115193638).

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

203130023421402 is a wasteful number, since it uses less digits than its factorization.

203130023421402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108149 (or 108146 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 203130023421402 its reverse (204124320031302), we get a palindrome (407254343452704).

The spelling of 203130023421402 in words is "two hundred three trillion, one hundred thirty billion, twenty-three million, four hundred twenty-one thousand, four hundred two".