20063131 has 6 divisors (see below), whose sum is σ = 22052996. Its totient is φ = 18239100.

The previous prime is 20063089. The next prime is 20063137. The reversal of 20063131 is 13136002.

It is not a de Polignac number, because 20063131 - 2¹⁵ = 20030363 is a prime.

It is a super-2 number, since 2×20063131² = 805058451046322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20063137) 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, 82785 + ... + 83026.

Almost surely, 2^20063131 is an apocalyptic number.

20063131 is a deficient number, since it is larger than the sum of its proper divisors (1989865).

20063131 is a wasteful number, since it uses less digits than its factorization.

20063131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165833 (or 165822 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 20063131 is about 4479.1886542096. The cubic root of 20063131 is about 271.7270681726.

Adding to 20063131 its reverse (13136002), we get a palindrome (33199133).

The spelling of 20063131 in words is "twenty million, sixty-three thousand, one hundred thirty-one".