63123420 has 48 divisors (see below), whose sum is σ = 177897888. Its totient is φ = 16723200.

The previous prime is 63123413. The next prime is 63123427. The reversal of 63123420 is 2432136.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (63123413) and next prime (63123427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63123427) 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, 6070 + ... + 12770.

It is an arithmetic number, because the mean of its divisors is an integer number (3706206).

Almost surely, 2^63123420 is an apocalyptic number.

63123420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63123420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88948944).

63123420 is an abundant number, since it is smaller than the sum of its proper divisors (114774468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63123420 is a wasteful number, since it uses less digits than its factorization.

63123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870 (or 6868 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 63123420 is about 7945.0248583626. The cubic root of 63123420 is about 398.1653900469.

Adding to 63123420 its reverse (2432136), we get a palindrome (65555556).

The spelling of 63123420 in words is "sixty-three million, one hundred twenty-three thousand, four hundred twenty".