203874013381 has 8 divisors (see below), whose sum is σ = 205255589400. Its totient is φ = 202492614912.

The previous prime is 203874013267. The next prime is 203874013403. The reversal of 203874013381 is 183310478302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7390153156 + 196483860225 = 85966^2 + 443265^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 203874013381 - 2⁷ = 203874013253 is a prime.

It is a super-2 number, since 2×203874013381² (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 (203874014381) 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, 2932681 + ... + 3001393.

It is an arithmetic number, because the mean of its divisors is an integer number (25656948675).

Almost surely, 2^203874013381 is an apocalyptic number.

It is an amenable number.

203874013381 is a deficient number, since it is larger than the sum of its proper divisors (1381576019).

203874013381 is a wasteful number, since it uses less digits than its factorization.

203874013381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88775.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 203874013381 in words is "two hundred three billion, eight hundred seventy-four million, thirteen thousand, three hundred eighty-one".