20111354463 has 8 divisors (see below), whose sum is σ = 26817020208. Its totient is φ = 13406629184.

The previous prime is 20111354413. The next prime is 20111354519. The reversal of 20111354463 is 36445311102.

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 20111354463 - 2¹² = 20111350367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20111354463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111354413) 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, 183606 + ... + 271907.

It is an arithmetic number, because the mean of its divisors is an integer number (3352127526).

Almost surely, 2^20111354463 is an apocalyptic number.

20111354463 is a deficient number, since it is larger than the sum of its proper divisors (6705665745).

20111354463 is a wasteful number, since it uses less digits than its factorization.

20111354463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470233.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 20111354463 its reverse (36445311102), we get a palindrome (56556665565).

The spelling of 20111354463 in words is "twenty billion, one hundred eleven million, three hundred fifty-four thousand, four hundred sixty-three".