20403215301 has 12 divisors (see below), whose sum is σ = 31645803552. Its totient is φ = 11658980088.

The previous prime is 20403215243. The next prime is 20403215311. The reversal of 20403215301 is 10351230402.

It is not a de Polignac number, because 20403215301 - 2¹¹ = 20403213253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20403215311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69398545 + ... + 69398838.

It is an arithmetic number, because the mean of its divisors is an integer number (2637150296).

Almost surely, 2^20403215301 is an apocalyptic number.

20403215301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20403215301 is a deficient number, since it is larger than the sum of its proper divisors (11242588251).

20403215301 is a wasteful number, since it uses less digits than its factorization.

20403215301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138797400 (or 138797393 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20403215301 its reverse (10351230402), we get a palindrome (30754445703).

The spelling of 20403215301 in words is "twenty billion, four hundred three million, two hundred fifteen thousand, three hundred one".