20001002400297 has 12 divisors (see below), whose sum is σ = 29380003526640. Its totient is φ = 13108001572728.

The previous prime is 20001002400263. The next prime is 20001002400307. The reversal of 20001002400297 is 79200420010002.

It is not a de Polignac number, because 20001002400297 - 2¹⁴ = 20001002383913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20001002400297.

It is not an unprimeable number, because it can be changed into a prime (20001002400217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18833335063 + ... + 18833336124.

It is an arithmetic number, because the mean of its divisors is an integer number (2448333627220).

Almost surely, 2^{20001002400297} is an apocalyptic number.

It is an amenable number.

20001002400297 is a deficient number, since it is larger than the sum of its proper divisors (9379001126343).

20001002400297 is a wasteful number, since it uses less digits than its factorization.

20001002400297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37666671252 (or 37666671249 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 20001002400297 its reverse (79200420010002), we get a palindrome (99201422410299).

The spelling of 20001002400297 in words is "twenty trillion, one billion, two million, four hundred thousand, two hundred ninety-seven".