19820102001 has 16 divisors (see below), whose sum is σ = 31978652544. Its totient is φ = 10659550464.

The previous prime is 19820101943. The next prime is 19820102009. The reversal of 19820102001 is 10020102891.

It is not a de Polignac number, because 19820102001 - 2¹³ = 19820093809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19820102009) 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, 27758890 + ... + 27759603.

It is an arithmetic number, because the mean of its divisors is an integer number (1998665784).

Almost surely, 2^19820102001 is an apocalyptic number.

It is an amenable number.

19820102001 is a deficient number, since it is larger than the sum of its proper divisors (12158550543).

19820102001 is a wasteful number, since it uses less digits than its factorization.

19820102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55518520.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 19820102001 its reverse (10020102891), we get a palindrome (29840204892).

The spelling of 19820102001 in words is "nineteen billion, eight hundred twenty million, one hundred two thousand, one".