1902112001 has 8 divisors (see below), whose sum is σ = 1981862400. Its totient is φ = 1823305680.

The previous prime is 1902111989. The next prime is 1902112019. The reversal of 1902112001 is 1002112091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1902112001 - 2³⁰ = 828370177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1902112061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231905 + ... + 239966.

It is an arithmetic number, because the mean of its divisors is an integer number (247732800).

Almost surely, 2^1902112001 is an apocalyptic number.

It is an amenable number.

1902112001 is a deficient number, since it is larger than the sum of its proper divisors (79750399).

1902112001 is a wasteful number, since it uses less digits than its factorization.

1902112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472039.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1902112001 is about 43613.2090197454. The cubic root of 1902112001 is about 1239.0210798472.

Adding to 1902112001 its reverse (1002112091), we get a palindrome (2904224092).

The spelling of 1902112001 in words is "one billion, nine hundred two million, one hundred twelve thousand, one".