20431244037 has 8 divisors (see below), whose sum is σ = 27244717920. Its totient is φ = 13619299760.

The previous prime is 20431244003. The next prime is 20431244081. The reversal of 20431244037 is 73044213402.

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 20431244037 - 2¹¹ = 20431241989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20431243995 and 20431244013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431244137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350862 + ... + 404927.

It is an arithmetic number, because the mean of its divisors is an integer number (3405589740).

Almost surely, 2^20431244037 is an apocalyptic number.

It is an amenable number.

20431244037 is a deficient number, since it is larger than the sum of its proper divisors (6813473883).

20431244037 is an equidigital number, since it uses as much as digits as its factorization.

20431244037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764803.

The product of its (nonzero) digits is 16128, while the sum is 30.

Adding to 20431244037 its reverse (73044213402), we get a palindrome (93475457439).

The spelling of 20431244037 in words is "twenty billion, four hundred thirty-one million, two hundred forty-four thousand, thirty-seven".