20341401021 has 16 divisors (see below), whose sum is σ = 30137699520. Its totient is φ = 13559903280.

The previous prime is 20341401019. The next prime is 20341401029. The reversal of 20341401021 is 12010414302.

20341401021 is a `hidden beast` number, since 203 + 41 + 401 + 0 + 21 = 666.

It is not a de Polignac number, because 20341401021 - 2¹ = 20341401019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20341400985 and 20341401003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341401029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534651 + ... + 571431.

It is an arithmetic number, because the mean of its divisors is an integer number (1883606220).

Almost surely, 2^20341401021 is an apocalyptic number.

It is an amenable number.

20341401021 is a deficient number, since it is larger than the sum of its proper divisors (9796298499).

20341401021 is a wasteful number, since it uses less digits than its factorization.

20341401021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57273 (or 57267 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20341401021 its reverse (12010414302), we get a palindrome (32351815323).

The spelling of 20341401021 in words is "twenty billion, three hundred forty-one million, four hundred one thousand, twenty-one".