20420031401 has 16 divisors (see below), whose sum is σ = 25462330368. Its totient is φ = 15909469200.

The previous prime is 20420031371. The next prime is 20420031413. The reversal of 20420031401 is 10413002402.

It is a cyclic number.

It is not a de Polignac number, because 20420031401 - 2¹⁴ = 20420015017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20420031401.

It is not an unprimeable number, because it can be changed into a prime (20420031301) 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, 718406 + ... + 746288.

It is an arithmetic number, because the mean of its divisors is an integer number (1591395648).

Almost surely, 2^20420031401 is an apocalyptic number.

It is an amenable number.

20420031401 is a deficient number, since it is larger than the sum of its proper divisors (5042298967).

20420031401 is a wasteful number, since it uses less digits than its factorization.

20420031401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37412.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20420031401 its reverse (10413002402), we get a palindrome (30833033803).

The spelling of 20420031401 in words is "twenty billion, four hundred twenty million, thirty-one thousand, four hundred one".