11902001 has 2 divisors, whose sum is σ = 11902002. Its totient is φ = 11902000.

The previous prime is 11901979. The next prime is 11902019. The reversal of 11902001 is 10020911.

11902001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11895601 + 6400 = 3449^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 11902001 - 2⁶ = 11901937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11902021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5951000 + 5951001.

It is an arithmetic number, because the mean of its divisors is an integer number (5951001).

Almost surely, 2^11902001 is an apocalyptic number.

It is an amenable number.

11902001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11902001 is an equidigital number, since it uses as much as digits as its factorization.

11902001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 11902001 is about 3449.9276804014. The cubic root of 11902001 is about 228.3179172760.

Adding to 11902001 its reverse (10020911), we get a palindrome (21922912).

The spelling of 11902001 in words is "eleven million, nine hundred two thousand, one".