20444215031 has 8 divisors (see below), whose sum is σ = 20947995600. Its totient is φ = 19940679360.

The previous prime is 20444214997. The next prime is 20444215037. The reversal of 20444215031 is 13051244402.

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

It is a cyclic number.

It is not a de Polignac number, because 20444215031 - 2¹⁴ = 20444198647 is a prime.

It is a super-2 number, since 2×20444215031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444215037) 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, 113885 + ... + 232073.

It is an arithmetic number, because the mean of its divisors is an integer number (2618499450).

Almost surely, 2^20444215031 is an apocalyptic number.

20444215031 is a deficient number, since it is larger than the sum of its proper divisors (503780569).

20444215031 is a wasteful number, since it uses less digits than its factorization.

20444215031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122449.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 20444215031 its reverse (13051244402), we get a palindrome (33495459433).

The spelling of 20444215031 in words is "twenty billion, four hundred forty-four million, two hundred fifteen thousand, thirty-one".