20031130311 has 16 divisors (see below), whose sum is σ = 28324972800. Its totient is φ = 12548227968.

The previous prime is 20031130309. The next prime is 20031130321. The reversal of 20031130311 is 11303113002.

It is not a de Polignac number, because 20031130311 - 2¹ = 20031130309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031130321) 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 15 ways as a sum of consecutive naturals, for example, 285691 + ... + 348828.

It is an arithmetic number, because the mean of its divisors is an integer number (1770310800).

Almost surely, 2^20031130311 is an apocalyptic number.

20031130311 is a deficient number, since it is larger than the sum of its proper divisors (8293842489).

20031130311 is a wasteful number, since it uses less digits than its factorization.

20031130311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635158.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 20031130311 its reverse (11303113002), we get a palindrome (31334243313).

The spelling of 20031130311 in words is "twenty billion, thirty-one million, one hundred thirty thousand, three hundred eleven".