1206904902001 has 4 divisors (see below), whose sum is σ = 1208787749604. Its totient is φ = 1205022054400.

The previous prime is 1206904901963. The next prime is 1206904902019. The reversal of 1206904902001 is 1002094096021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 963067449600 + 243837452401 = 981360^2 + 493799^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206904902001 - 2¹³ = 1206904893809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206904902031) 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, 941422840 + ... + 941424121.

It is an arithmetic number, because the mean of its divisors is an integer number (302196937401).

Almost surely, 2^{1206904902001} is an apocalyptic number.

It is an amenable number.

1206904902001 is a deficient number, since it is larger than the sum of its proper divisors (1882847603).

1206904902001 is an equidigital number, since it uses as much as digits as its factorization.

1206904902001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882847602.

The product of its (nonzero) digits is 7776, while the sum is 34.

Adding to 1206904902001 its reverse (1002094096021), we get a palindrome (2208998998022).

The spelling of 1206904902001 in words is "one trillion, two hundred six billion, nine hundred four million, nine hundred two thousand, one".