1263063120 has 80 divisors (see below), whose sum is σ = 4271458752. Its totient is φ = 306196480.

The previous prime is 1263063089. The next prime is 1263063121. The reversal of 1263063120 is 213603621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263063121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236577 + ... + 241856.

Almost surely, 2^1263063120 is an apocalyptic number.

1263063120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1263063120 is an abundant number, since it is smaller than the sum of its proper divisors (3008395632).

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

1263063120 is a wasteful number, since it uses less digits than its factorization.

1263063120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478460 (or 478454 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1263063120 is about 35539.5993224459. The cubic root of 1263063120 is about 1080.9568337917.

Adding to 1263063120 its reverse (213603621), we get a palindrome (1476666741).

The spelling of 1263063120 in words is "one billion, two hundred sixty-three million, sixty-three thousand, one hundred twenty".