1200110402 has 4 divisors (see below), whose sum is σ = 1800165606. Its totient is φ = 600055200.

The previous prime is 1200110377. The next prime is 1200110423. The reversal of 1200110402 is 2040110021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 611028961 + 589081441 = 24719^2 + 24271^2 .

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 as a sum of consecutive naturals, namely, 300027599 + ... + 300027602.

Almost surely, 2^1200110402 is an apocalyptic number.

1200110402 is a deficient number, since it is larger than the sum of its proper divisors (600055204).

1200110402 is an equidigital number, since it uses as much as digits as its factorization.

1200110402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600055203.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1200110402 is about 34642.6096303382. The cubic root of 1200110402 is about 1062.6911569697.

Adding to 1200110402 its reverse (2040110021), we get a palindrome (3240220423).

The spelling of 1200110402 in words is "one billion, two hundred million, one hundred ten thousand, four hundred two".