203080497781 has 8 divisors (see below), whose sum is σ = 232102522944. Its totient is φ = 174061104000.

The previous prime is 203080497751. The next prime is 203080497791. The reversal of 203080497781 is 187794080302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203080497781 - 2⁵ = 203080497749 is a prime.

It is a super-2 number, since 2×203080497781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203080497701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489595 + ... + 803656.

It is an arithmetic number, because the mean of its divisors is an integer number (29012815368).

Almost surely, 2^203080497781 is an apocalyptic number.

It is an amenable number.

203080497781 is a deficient number, since it is larger than the sum of its proper divisors (29022025163).

203080497781 is a wasteful number, since it uses less digits than its factorization.

203080497781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315691.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 203080497781 in words is "two hundred three billion, eighty million, four hundred ninety-seven thousand, seven hundred eighty-one".