20001102031 has 2 divisors, whose sum is σ = 20001102032. Its totient is φ = 20001102030.

The previous prime is 20001101993. The next prime is 20001102067. The reversal of 20001102031 is 13020110002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20001102031 - 2¹⁹ = 20000577743 is a prime.

It is a super-2 number, since 2×20001102031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001101999 and 20001102017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001102091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000551015 + 10000551016.

It is an arithmetic number, because the mean of its divisors is an integer number (10000551016).

Almost surely, 2^20001102031 is an apocalyptic number.

20001102031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001102031 is an equidigital number, since it uses as much as digits as its factorization.

20001102031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20001102031 its reverse (13020110002), we get a palindrome (33021212033).

The spelling of 20001102031 in words is "twenty billion, one million, one hundred two thousand, thirty-one".