20423114031 has 4 divisors (see below), whose sum is σ = 27230818712. Its totient is φ = 13615409352.

The previous prime is 20423114029. The next prime is 20423114057. The reversal of 20423114031 is 13041132402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20423114031 - 2¹ = 20423114029 is a prime.

It is a super-2 number, since 2×20423114031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20423113989 and 20423114007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423114531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3403852336 + ... + 3403852341.

It is an arithmetic number, because the mean of its divisors is an integer number (6807704678).

Almost surely, 2^20423114031 is an apocalyptic number.

20423114031 is a deficient number, since it is larger than the sum of its proper divisors (6807704681).

20423114031 is an equidigital number, since it uses as much as digits as its factorization.

20423114031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6807704680.

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

Adding to 20423114031 its reverse (13041132402), we get a palindrome (33464246433).

The spelling of 20423114031 in words is "twenty billion, four hundred twenty-three million, one hundred fourteen thousand, thirty-one".