1300123320 has 32 divisors (see below), whose sum is σ = 3900370320. Its totient is φ = 346699520.

The previous prime is 1300123309. The next prime is 1300123327. The reversal of 1300123320 is 233210031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1300123320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300123327) 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, 5417061 + ... + 5417300.

Almost surely, 2^1300123320 is an apocalyptic number.

1300123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300123320 is an abundant number, since it is smaller than the sum of its proper divisors (2600247000).

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

1300123320 is a wasteful number, since it uses less digits than its factorization.

1300123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10834375 (or 10834371 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1300123320 is about 36057.2228547901. Note that the first 3 decimals coincide. The cubic root of 1300123320 is about 1091.4273923726.

Adding to 1300123320 its reverse (233210031), we get a palindrome (1533333351).

The spelling of 1300123320 in words is "one billion, three hundred million, one hundred twenty-three thousand, three hundred twenty".