20303320103031 has 64 divisors (see below), whose sum is σ = 31824593418240. Its totient is φ = 11270573383680.

The previous prime is 20303320103021. The next prime is 20303320103069. The reversal of 20303320103031 is 13030102330302.

It is not a de Polignac number, because 20303320103031 - 2⁵ = 20303320102999 is a prime.

It is a super-2 number, since 2×20303320103031² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20303320102989 and 20303320103007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303320103021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1513246635 + ... + 1513260051.

It is an arithmetic number, because the mean of its divisors is an integer number (497259272160).

Almost surely, 2^{20303320103031} is an apocalyptic number.

20303320103031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20303320103031 is a deficient number, since it is larger than the sum of its proper divisors (11521273315209).

20303320103031 is a wasteful number, since it uses less digits than its factorization.

20303320103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16384.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20303320103031 its reverse (13030102330302), we get a palindrome (33333422433333).

The spelling of 20303320103031 in words is "twenty trillion, three hundred three billion, three hundred twenty million, one hundred three thousand, thirty-one".