20431313301 has 32 divisors (see below), whose sum is σ = 33186918400. Its totient is φ = 10920536640.

The previous prime is 20431313299. The next prime is 20431313317. The reversal of 20431313301 is 10331313402.

It is not a de Polignac number, because 20431313301 - 2¹ = 20431313299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431313381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292570 + ... + 355611.

It is an arithmetic number, because the mean of its divisors is an integer number (1037091200).

Almost surely, 2^20431313301 is an apocalyptic number.

20431313301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20431313301 is a deficient number, since it is larger than the sum of its proper divisors (12755605099).

20431313301 is a wasteful number, since it uses less digits than its factorization.

20431313301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648289.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20431313301 its reverse (10331313402), we get a palindrome (30762626703).

The spelling of 20431313301 in words is "twenty billion, four hundred thirty-one million, three hundred thirteen thousand, three hundred one".