20302202031 has 16 divisors (see below), whose sum is σ = 29264438400. Its totient is φ = 12475889568.

The previous prime is 20302202029. The next prime is 20302202071. The reversal of 20302202031 is 13020220302.

It is not a de Polignac number, because 20302202031 - 2¹ = 20302202029 is a prime.

It is a super-2 number, since 2×20302202031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20302202031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302202071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4811121 + ... + 4815338.

It is an arithmetic number, because the mean of its divisors is an integer number (1829027400).

Almost surely, 2^20302202031 is an apocalyptic number.

20302202031 is a deficient number, since it is larger than the sum of its proper divisors (8962236369).

20302202031 is a wasteful number, since it uses less digits than its factorization.

20302202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9626518.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20302202031 its reverse (13020220302), we get a palindrome (33322422333).

The spelling of 20302202031 in words is "twenty billion, three hundred two million, two hundred two thousand, thirty-one".