20020311302001 has 4 divisors (see below), whose sum is σ = 26693748402672. Its totient is φ = 13346874201332.

The previous prime is 20020311301981. The next prime is 20020311302009. The reversal of 20020311302001 is 10020311302002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20020311302001 - 2⁷ = 20020311301873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020311302009) 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, 3336718550331 + ... + 3336718550336.

It is an arithmetic number, because the mean of its divisors is an integer number (6673437100668).

Almost surely, 2^{20020311302001} is an apocalyptic number.

It is an amenable number.

20020311302001 is a deficient number, since it is larger than the sum of its proper divisors (6673437100671).

20020311302001 is an equidigital number, since it uses as much as digits as its factorization.

20020311302001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6673437100670.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20020311302001 its reverse (10020311302002), we get a palindrome (30040622604003).

Subtracting from 20020311302001 its reverse (10020311302002), we obtain a palindrome (9999999999999).

The spelling of 20020311302001 in words is "twenty trillion, twenty billion, three hundred eleven million, three hundred two thousand, one".