20020112211031 has 2 divisors, whose sum is σ = 20020112211032. Its totient is φ = 20020112211030.

The previous prime is 20020112211023. The next prime is 20020112211037. The reversal of 20020112211031 is 13011221102002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020112211031 - 2³ = 20020112211023 is a prime.

It is a super-2 number, since 2×20020112211031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20020112210996 and 20020112211014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020112211037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010056105515 + 10010056105516.

It is an arithmetic number, because the mean of its divisors is an integer number (10010056105516).

Almost surely, 2^{20020112211031} is an apocalyptic number.

20020112211031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020112211031 is an equidigital number, since it uses as much as digits as its factorization.

20020112211031 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 20020112211031 its reverse (13011221102002), we get a palindrome (33031333313033).

The spelling of 20020112211031 in words is "twenty trillion, twenty billion, one hundred twelve million, two hundred eleven thousand, thirty-one".