1203400012 has 12 divisors (see below), whose sum is σ = 2229829560. Its totient is φ = 566305856.

The previous prime is 1203400007. The next prime is 1203400013. The reversal of 1203400012 is 2100043021.

It is a junction number, because it is equal to n+sod(n) for n = 1203399965 and 1203400001.

It is not an unprimeable number, because it can be changed into a prime (1203400013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8848462 + ... + 8848597.

It is an arithmetic number, because the mean of its divisors is an integer number (185819130).

Almost surely, 2^1203400012 is an apocalyptic number.

It is an amenable number.

1203400012 is a deficient number, since it is larger than the sum of its proper divisors (1026429548).

1203400012 is a wasteful number, since it uses less digits than its factorization.

1203400012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17697080 (or 17697078 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1203400012 is about 34690.0563850796. The cubic root of 1203400012 is about 1063.6612483241.

Adding to 1203400012 its reverse (2100043021), we get a palindrome (3303443033).

The spelling of 1203400012 in words is "one billion, two hundred three million, four hundred thousand, twelve".