20310000431 has 16 divisors (see below), whose sum is σ = 24270449664. Its totient is φ = 16617420864.

The previous prime is 20310000379. The next prime is 20310000449. The reversal of 20310000431 is 13400001302.

It is a cyclic number.

It is not a de Polignac number, because 20310000431 - 2¹⁴ = 20309984047 is a prime.

It is a super-3 number, since 3×20310000431³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310000481) 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, 51110 + ... + 207923.

It is an arithmetic number, because the mean of its divisors is an integer number (1516903104).

Almost surely, 2^20310000431 is an apocalyptic number.

20310000431 is a deficient number, since it is larger than the sum of its proper divisors (3960449233).

20310000431 is a wasteful number, since it uses less digits than its factorization.

20310000431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259550.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20310000431 its reverse (13400001302), we get a palindrome (33710001733).

The spelling of 20310000431 in words is "twenty billion, three hundred ten million, four hundred thirty-one", and thus it is an aban number.