20031431303 has 8 divisors (see below), whose sum is σ = 21785899296. Its totient is φ = 18307476000.

The previous prime is 20031431267. The next prime is 20031431309. The reversal of 20031431303 is 30313413002.

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

It is a cyclic number.

It is not a de Polignac number, because 20031431303 - 2⁸ = 20031431047 is a prime.

It is a super-3 number, since 3×20031431303³ (a number of 32 digits) contains 333 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 (20031431309) 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, 7626803 + ... + 7629428.

It is an arithmetic number, because the mean of its divisors is an integer number (2723237412).

Almost surely, 2^20031431303 is an apocalyptic number.

20031431303 is a deficient number, since it is larger than the sum of its proper divisors (1754467993).

20031431303 is a wasteful number, since it uses less digits than its factorization.

20031431303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256345.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20031431303 its reverse (30313413002), we get a palindrome (50344844305).

The spelling of 20031431303 in words is "twenty billion, thirty-one million, four hundred thirty-one thousand, three hundred three".