20124003343431 has 16 divisors (see below), whose sum is σ = 28896276498656. Its totient is φ = 12383885615616.

The previous prime is 20124003343397. The next prime is 20124003343459. The reversal of 20124003343431 is 13434330042102.

It is a happy number.

It is not a de Polignac number, because 20124003343431 - 2¹⁹ = 20124002819143 is a prime.

It is a super-2 number, since 2×20124003343431² (a number of 27 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 (20124003343931) 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, 1871451 + ... + 6614403.

It is an arithmetic number, because the mean of its divisors is an integer number (1806017281166).

Almost surely, 2^{20124003343431} is an apocalyptic number.

20124003343431 is a deficient number, since it is larger than the sum of its proper divisors (8772273155225).

20124003343431 is a wasteful number, since it uses less digits than its factorization.

20124003343431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851762.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20124003343431 its reverse (13434330042102), we get a palindrome (33558333385533).

The spelling of 20124003343431 in words is "twenty trillion, one hundred twenty-four billion, three million, three hundred forty-three thousand, four hundred thirty-one".