20301103031 has 12 divisors (see below), whose sum is σ = 22318170336. Its totient is φ = 18452459520.

The previous prime is 20301103003. The next prime is 20301103063. The reversal of 20301103031 is 13030110302.

It is a de Polignac number, because none of the positive numbers 2^k-20301103031 is a prime.

It is a super-2 number, since 2×20301103031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20301102997 and 20301103015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301103001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1033655 + ... + 1053111.

It is an arithmetic number, because the mean of its divisors is an integer number (1859847528).

Almost surely, 2^20301103031 is an apocalyptic number.

20301103031 is a deficient number, since it is larger than the sum of its proper divisors (2017067305).

20301103031 is a wasteful number, since it uses less digits than its factorization.

20301103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28102 (or 28091 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20301103031 its reverse (13030110302), we get a palindrome (33331213333).

The spelling of 20301103031 in words is "twenty billion, three hundred one million, one hundred three thousand, thirty-one".