20311323110 has 32 divisors (see below), whose sum is σ = 40018188672. Its totient is φ = 7376618880.

The previous prime is 20311323107. The next prime is 20311323113. The reversal of 20311323110 is 1132311302.

It is an interprime number because it is at equal distance from previous prime (20311323107) and next prime (20311323113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311323113) 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, 1272734 + ... + 1288593.

It is an arithmetic number, because the mean of its divisors is an integer number (1250568396).

Almost surely, 2^20311323110 is an apocalyptic number.

20311323110 is a deficient number, since it is larger than the sum of its proper divisors (19706865562).

20311323110 is a wasteful number, since it uses less digits than its factorization.

20311323110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561408.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20311323110 its reverse (1132311302), we get a palindrome (21443634412).

The spelling of 20311323110 in words is "twenty billion, three hundred eleven million, three hundred twenty-three thousand, one hundred ten".