20201201011031 has 2 divisors, whose sum is σ = 20201201011032. Its totient is φ = 20201201011030.

The previous prime is 20201201010997. The next prime is 20201201011039. The reversal of 20201201011031 is 13011010210202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20201201011031 - 2¹⁸ = 20201200748887 is a prime.

It is a super-2 number, since 2×20201201011031² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20201201010997 and 20201201011015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201201011039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100600505515 + 10100600505516.

It is an arithmetic number, because the mean of its divisors is an integer number (10100600505516).

Almost surely, 2^{20201201011031} is an apocalyptic number.

20201201011031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201201011031 is an equidigital number, since it uses as much as digits as its factorization.

20201201011031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20201201011031 its reverse (13011010210202), we get a palindrome (33212211221233).

The spelling of 20201201011031 in words is "twenty trillion, two hundred one billion, two hundred one million, eleven thousand, thirty-one".