1200111402 has 32 divisors (see below), whose sum is σ = 2887488000. Its totient is φ = 324841968.

The previous prime is 1200111373. The next prime is 1200111403. The reversal of 1200111402 is 2041110021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1200111403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751152 + ... + 752747.

It is an arithmetic number, because the mean of its divisors is an integer number (90234000).

Almost surely, 2^1200111402 is an apocalyptic number.

1200111402 is an abundant number, since it is smaller than the sum of its proper divisors (1687376598).

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

1200111402 is a wasteful number, since it uses less digits than its factorization.

1200111402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503930.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1200111402 is about 34642.6240634280. The cubic root of 1200111402 is about 1062.6914521345.

Adding to 1200111402 its reverse (2041110021), we get a palindrome (3241221423).

The spelling of 1200111402 in words is "one billion, two hundred million, one hundred eleven thousand, four hundred two".