63031223 has 4 divisors (see below), whose sum is σ = 66738960. Its totient is φ = 59323488.

The previous prime is 63031219. The next prime is 63031229. The reversal of 63031223 is 32213036.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63031223 - 2² = 63031219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63031195 and 63031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63031229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1853843 + ... + 1853876.

It is an arithmetic number, because the mean of its divisors is an integer number (16684740).

Almost surely, 2^63031223 is an apocalyptic number.

63031223 is a deficient number, since it is larger than the sum of its proper divisors (3707737).

63031223 is a wasteful number, since it uses less digits than its factorization.

63031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707736.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 63031223 is about 7939.2205536816. The cubic root of 63031223 is about 397.9714443794.

Adding to 63031223 its reverse (32213036), we get a palindrome (95244259).

The spelling of 63031223 in words is "sixty-three million, thirty-one thousand, two hundred twenty-three".