20303123032311 has 48 divisors (see below), whose sum is σ = 32163984806400. Its totient is φ = 11353732467840.

The previous prime is 20303123032303. The next prime is 20303123032321. The reversal of 20303123032311 is 11323032130302.

It is not a de Polignac number, because 20303123032311 - 2³ = 20303123032303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303123032321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67011240 + ... + 67313538.

It is an arithmetic number, because the mean of its divisors is an integer number (670083016800).

Almost surely, 2^{20303123032311} is an apocalyptic number.

20303123032311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20303123032311 is a deficient number, since it is larger than the sum of its proper divisors (11860861774089).

20303123032311 is a wasteful number, since it uses less digits than its factorization.

20303123032311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312084 (or 312077 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20303123032311 its reverse (11323032130302), we get a palindrome (31626155162613).

The spelling of 20303123032311 in words is "twenty trillion, three hundred three billion, one hundred twenty-three million, thirty-two thousand, three hundred eleven".