20302103623 has 2 divisors, whose sum is σ = 20302103624. Its totient is φ = 20302103622.

The previous prime is 20302103617. The next prime is 20302103641. The reversal of 20302103623 is 32630120302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20302103623 - 2¹³ = 20302095431 is a prime.

It is a super-2 number, since 2×20302103623² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20302103594 and 20302103603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302109623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151051811 + 10151051812.

It is an arithmetic number, because the mean of its divisors is an integer number (10151051812).

Almost surely, 2^20302103623 is an apocalyptic number.

20302103623 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302103623 is an equidigital number, since it uses as much as digits as its factorization.

20302103623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20302103623 its reverse (32630120302), we get a palindrome (52932223925).

The spelling of 20302103623 in words is "twenty billion, three hundred two million, one hundred three thousand, six hundred twenty-three".