1300400012 has 12 divisors (see below), whose sum is σ = 2277309216. Its totient is φ = 649740240.

The previous prime is 1300399987. The next prime is 1300400021. The reversal of 1300400012 is 2100040031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1300399966 and 1300400002.

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 3 ways as a sum of consecutive naturals, for example, 108539 + ... + 119922.

It is an arithmetic number, because the mean of its divisors is an integer number (189775768).

Almost surely, 2^1300400012 is an apocalyptic number.

It is an amenable number.

1300400012 is a deficient number, since it is larger than the sum of its proper divisors (976909204).

1300400012 is a wasteful number, since it uses less digits than its factorization.

1300400012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229888 (or 229886 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1300400012 is about 36061.0594963598. The cubic root of 1300400012 is about 1091.5048126713.

Adding to 1300400012 its reverse (2100040031), we get a palindrome (3400440043).

The spelling of 1300400012 in words is "one billion, three hundred million, four hundred thousand, twelve".