1013200320 has 112 divisors (see below), whose sum is σ = 3509394048. Its totient is φ = 245621760.

The previous prime is 1013200319. The next prime is 1013200343. The reversal of 1013200320 is 230023101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1013200296 and 1013200305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37414 + ... + 58533.

Almost surely, 2^1013200320 is an apocalyptic number.

1013200320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013200320 is an abundant number, since it is smaller than the sum of its proper divisors (2496193728).

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

1013200320 is a wasteful number, since it uses less digits than its factorization.

1013200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95978 (or 95968 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1013200320 is about 31830.8077183096. The cubic root of 1013200320 is about 1004.3808864741.

Adding to 1013200320 its reverse (230023101), we get a palindrome (1243223421).

The spelling of 1013200320 in words is "one billion, thirteen million, two hundred thousand, three hundred twenty".