20041431123 has 8 divisors (see below), whose sum is σ = 30539323648. Its totient is φ = 11452246344.

The previous prime is 20041431119. The next prime is 20041431127. The reversal of 20041431123 is 32113414002.

It is an interprime number because it is at equal distance from previous prime (20041431119) and next prime (20041431127).

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

It is not a de Polignac number, because 20041431123 - 2² = 20041431119 is a prime.

It is a super-2 number, since 2×20041431123² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 954353863 = 20041431123 / (2 + 0 + 0 + 4 + 1 + 4 + 3 + 1 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20041431123.

It is not an unprimeable number, because it can be changed into a prime (20041431127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477176911 + ... + 477176952.

It is an arithmetic number, because the mean of its divisors is an integer number (3817415456).

Almost surely, 2^20041431123 is an apocalyptic number.

20041431123 is a deficient number, since it is larger than the sum of its proper divisors (10497892525).

20041431123 is an equidigital number, since it uses as much as digits as its factorization.

20041431123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954353873.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20041431123 its reverse (32113414002), we get a palindrome (52154845125).

The spelling of 20041431123 in words is "twenty billion, forty-one million, four hundred thirty-one thousand, one hundred twenty-three".