20111031314 has 32 divisors (see below), whose sum is σ = 34855028352. Its totient is φ = 8601120000.

The previous prime is 20111031307. The next prime is 20111031323. The reversal of 20111031314 is 41313011102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 20111031292 and 20111031301.

It is an unprimeable number.

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, 1846244 + ... + 1857104.

It is an arithmetic number, because the mean of its divisors is an integer number (1089219636).

Almost surely, 2^20111031314 is an apocalyptic number.

20111031314 is a deficient number, since it is larger than the sum of its proper divisors (14743997038).

20111031314 is a wasteful number, since it uses less digits than its factorization.

20111031314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15842.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20111031314 its reverse (41313011102), we get a palindrome (61424042416).

The spelling of 20111031314 in words is "twenty billion, one hundred eleven million, thirty-one thousand, three hundred fourteen".