20444001004131 has 32 divisors (see below), whose sum is σ = 29379905111040. Its totient is φ = 12603438406944.

The previous prime is 20444001004109. The next prime is 20444001004151. The reversal of 20444001004131 is 13140010044402.

It is not a de Polignac number, because 20444001004131 - 2¹⁴ = 20444000987747 is a prime.

It is a super-2 number, since 2×20444001004131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20444001004151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 994500 + ... + 6471246.

It is an arithmetic number, because the mean of its divisors is an integer number (918122034720).

Almost surely, 2^{20444001004131} is an apocalyptic number.

20444001004131 is a deficient number, since it is larger than the sum of its proper divisors (8935904106909).

20444001004131 is a wasteful number, since it uses less digits than its factorization.

20444001004131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478335.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20444001004131 its reverse (13140010044402), we get a palindrome (33584011048533).

The spelling of 20444001004131 in words is "twenty trillion, four hundred forty-four billion, one million, four thousand, one hundred thirty-one".