203084130690 has 320 divisors, whose sum is σ = 655164702720. Its totient is φ = 44158193280.

The previous prime is 203084130679. The next prime is 203084130731. The reversal of 203084130690 is 96031480302.

203084130690 is a `hidden beast` number, since 2 + 0 + 308 + 41 + 306 + 9 + 0 = 666.

It is a super-2 number, since 2×203084130690² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 10360639 + ... + 10380221.

It is an arithmetic number, because the mean of its divisors is an integer number (2047389696).

Almost surely, 2^203084130690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203084130690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327582351360).

203084130690 is an abundant number, since it is smaller than the sum of its proper divisors (452080572030).

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

203084130690 is a wasteful number, since it uses less digits than its factorization.

203084130690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19699 (or 19690 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 203084130690 in words is "two hundred three billion, eighty-four million, one hundred thirty thousand, six hundred ninety".