20031133293 has 12 divisors (see below), whose sum is σ = 29161686528. Its totient is φ = 13248937800.

The previous prime is 20031133279. The next prime is 20031133301. The reversal of 20031133293 is 39233113002.

20031133293 is a `hidden beast` number, since 20 + 0 + 311 + 3 + 329 + 3 = 666.

It is not a de Polignac number, because 20031133293 - 2⁴ = 20031133277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031133093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8761383 + ... + 8763668.

It is an arithmetic number, because the mean of its divisors is an integer number (2430140544).

Almost surely, 2^20031133293 is an apocalyptic number.

It is an amenable number.

20031133293 is a deficient number, since it is larger than the sum of its proper divisors (9130553235).

20031133293 is a wasteful number, since it uses less digits than its factorization.

20031133293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17525184 (or 17525181 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 20031133293 its reverse (39233113002), we get a palindrome (59264246295).

The spelling of 20031133293 in words is "twenty billion, thirty-one million, one hundred thirty-three thousand, two hundred ninety-three".