1300021140 has 48 divisors (see below), whose sum is σ = 3970975680. Its totient is φ = 315156480.

The previous prime is 1300021139. The next prime is 1300021183. The reversal of 1300021140 is 411200031.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984205 + ... + 985524.

It is an arithmetic number, because the mean of its divisors is an integer number (82728660).

Almost surely, 2^1300021140 is an apocalyptic number.

1300021140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300021140 is an abundant number, since it is smaller than the sum of its proper divisors (2670954540).

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

1300021140 is a wasteful number, since it uses less digits than its factorization.

1300021140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969752 (or 1969750 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1300021140 is about 36055.8059125018. The cubic root of 1300021140 is about 1091.3987989382.

Adding to 1300021140 its reverse (411200031), we get a palindrome (1711221171).

The spelling of 1300021140 in words is "one billion, three hundred million, twenty-one thousand, one hundred forty".