20200211121031 has 2 divisors, whose sum is σ = 20200211121032. Its totient is φ = 20200211121030.

The previous prime is 20200211121023. The next prime is 20200211121091. The reversal of 20200211121031 is 13012111200202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20200211121031 - 2³ = 20200211121023 is a prime.

It is a super-2 number, since 2×20200211121031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20200211120996 and 20200211121014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200211121091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100105560515 + 10100105560516.

It is an arithmetic number, because the mean of its divisors is an integer number (10100105560516).

Almost surely, 2^{20200211121031} is an apocalyptic number.

20200211121031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200211121031 is an equidigital number, since it uses as much as digits as its factorization.

20200211121031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20200211121031 its reverse (13012111200202), we get a palindrome (33212322321233).

The spelling of 20200211121031 in words is "twenty trillion, two hundred billion, two hundred eleven million, one hundred twenty-one thousand, thirty-one".