20112463 has 4 divisors (see below), whose sum is σ = 22985680. Its totient is φ = 17239248.

The previous prime is 20112439. The next prime is 20112473. The reversal of 20112463 is 36421102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36421102 = 2 ⋅18210551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112463 is a prime.

It is a super-2 number, since 2×20112463² = 809022335852738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20112463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436598 + ... + 1436611.

It is an arithmetic number, because the mean of its divisors is an integer number (5746420).

Almost surely, 2^20112463 is an apocalyptic number.

20112463 is a deficient number, since it is larger than the sum of its proper divisors (2873217).

20112463 is an equidigital number, since it uses as much as digits as its factorization.

20112463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873216.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20112463 is about 4484.6920741563. The cubic root of 20112463 is about 271.9495968818.

Adding to 20112463 its reverse (36421102), we get a palindrome (56533565).

The spelling of 20112463 in words is "twenty million, one hundred twelve thousand, four hundred sixty-three".