20420131411 has 8 divisors (see below), whose sum is σ = 20905663680. Its totient is φ = 19935083112.

The previous prime is 20420131337. The next prime is 20420131439. The reversal of 20420131411 is 11413102402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20420131411 - 2²³ = 20411742803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20420131441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34885 + ... + 205078.

It is an arithmetic number, because the mean of its divisors is an integer number (2613207960).

Almost surely, 2^20420131411 is an apocalyptic number.

20420131411 is a deficient number, since it is larger than the sum of its proper divisors (485532269).

20420131411 is a wasteful number, since it uses less digits than its factorization.

20420131411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241985.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20420131411 its reverse (11413102402), we get a palindrome (31833233813).

The spelling of 20420131411 in words is "twenty billion, four hundred twenty million, one hundred thirty-one thousand, four hundred eleven".