20112200001031 has 2 divisors, whose sum is σ = 20112200001032. Its totient is φ = 20112200001030.

The previous prime is 20112200001011. The next prime is 20112200001041. The reversal of 20112200001031 is 13010000221102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20112200001031 - 2²³ = 20112191612423 is a prime.

It is a super-2 number, since 2×20112200001031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112200001011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056100000515 + 10056100000516.

It is an arithmetic number, because the mean of its divisors is an integer number (10056100000516).

Almost surely, 2^{20112200001031} is an apocalyptic number.

20112200001031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112200001031 is an equidigital number, since it uses as much as digits as its factorization.

20112200001031 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 13.

Adding to 20112200001031 its reverse (13010000221102), we get a palindrome (33122200222133).

The spelling of 20112200001031 in words is "twenty trillion, one hundred twelve billion, two hundred million, one thousand, thirty-one".