1200104311 has 4 divisors (see below), whose sum is σ = 1371547792. Its totient is φ = 1028660832.

The previous prime is 1200104261. The next prime is 1200104351. The reversal of 1200104311 is 1134010021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200104311 - 2²¹ = 1198007159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200104291 and 1200104300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200104351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85721730 + ... + 85721743.

It is an arithmetic number, because the mean of its divisors is an integer number (342886948).

Almost surely, 2^1200104311 is an apocalyptic number.

1200104311 is a deficient number, since it is larger than the sum of its proper divisors (171443481).

1200104311 is an equidigital number, since it uses as much as digits as its factorization.

1200104311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171443480.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1200104311 is about 34642.5217182583. The cubic root of 1200104311 is about 1062.6893591177.

Adding to 1200104311 its reverse (1134010021), we get a palindrome (2334114332).

The spelling of 1200104311 in words is "one billion, two hundred million, one hundred four thousand, three hundred eleven".