203034153321 has 6 divisors (see below), whose sum is σ = 293271554810. Its totient is φ = 135356102208.

The previous prime is 203034153307. The next prime is 203034153403. The reversal of 203034153321 is 123351430302.

203034153321 is a `hidden beast` number, since 20 + 303 + 4 + 1 + 5 + 332 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 173546394921 + 29487758400 = 416589^2 + 171720^2 .

It is not a de Polignac number, because 203034153321 - 2¹⁴ = 203034136937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203034153221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11279675176 + ... + 11279675193.

Almost surely, 2^203034153321 is an apocalyptic number.

It is an amenable number.

203034153321 is a deficient number, since it is larger than the sum of its proper divisors (90237401489).

203034153321 is a wasteful number, since it uses less digits than its factorization.

203034153321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22559350375 (or 22559350372 counting only the distinct ones).

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

Adding to 203034153321 its reverse (123351430302), we get a palindrome (326385583623).

The spelling of 203034153321 in words is "two hundred three billion, thirty-four million, one hundred fifty-three thousand, three hundred twenty-one".