20213332401 has 16 divisors (see below), whose sum is σ = 28728000000. Its totient is φ = 12597750528.

The previous prime is 20213332379. The next prime is 20213332417. The reversal of 20213332401 is 10423331202.

It is not a de Polignac number, because 20213332401 - 2⁹ = 20213331889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20213332421) 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, 1322401 + ... + 1337598.

It is an arithmetic number, because the mean of its divisors is an integer number (1795500000).

Almost surely, 2^20213332401 is an apocalyptic number.

It is an amenable number.

20213332401 is a deficient number, since it is larger than the sum of its proper divisors (8514667599).

20213332401 is a wasteful number, since it uses less digits than its factorization.

20213332401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660168.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20213332401 its reverse (10423331202), we get a palindrome (30636663603).

The spelling of 20213332401 in words is "twenty billion, two hundred thirteen million, three hundred thirty-two thousand, four hundred one".