20031003031133 has 8 divisors (see below), whose sum is σ = 21214598398200. Its totient is φ = 18847996672000.

The previous prime is 20031003031129. The next prime is 20031003031139. The reversal of 20031003031133 is 33113030013002.

It can be written as a sum of positive squares in 4 ways, for example, as 1241526320644 + 18789476710489 = 1114238^2 + 4334683^2 .

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 20031003031133 - 2² = 20031003031129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031003031139) 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, 147181958 + ... + 147317991.

It is an arithmetic number, because the mean of its divisors is an integer number (2651824799775).

Almost surely, 2^{20031003031133} is an apocalyptic number.

It is an amenable number.

20031003031133 is a deficient number, since it is larger than the sum of its proper divisors (1183595367067).

20031003031133 is a wasteful number, since it uses less digits than its factorization.

20031003031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294503967.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 20031003031133 its reverse (33113030013002), we get a palindrome (53144033044135).

The spelling of 20031003031133 in words is "twenty trillion, thirty-one billion, three million, thirty-one thousand, one hundred thirty-three".