63111243 has 16 divisors (see below), whose sum is σ = 90845216. Its totient is φ = 38741760.

The previous prime is 63111203. The next prime is 63111247. The reversal of 63111243 is 34211136.

It is not a de Polignac number, because 63111243 - 2⁹ = 63110731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63111247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16053 + ... + 19593.

It is an arithmetic number, because the mean of its divisors is an integer number (5677826).

Almost surely, 2^63111243 is an apocalyptic number.

63111243 is a deficient number, since it is larger than the sum of its proper divisors (27733973).

63111243 is a wasteful number, since it uses less digits than its factorization.

63111243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014.

The product of its digits is 432, while the sum is 21.

The square root of 63111243 is about 7944.2584927733. The cubic root of 63111243 is about 398.1397853307.

Adding to 63111243 its reverse (34211136), we get a palindrome (97322379).

The spelling of 63111243 in words is "sixty-three million, one hundred eleven thousand, two hundred forty-three".