20031112369 has 2 divisors, whose sum is σ = 20031112370. Its totient is φ = 20031112368.

The previous prime is 20031112301. The next prime is 20031112391. The reversal of 20031112369 is 96321113002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16259310144 + 3771802225 = 127512^2 + 61415^2 .

It is a cyclic number.

It is not a de Polignac number, because 20031112369 - 2⁹ = 20031111857 is a prime.

It is a super-2 number, since 2×20031112369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20031112399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015556184 + 10015556185.

It is an arithmetic number, because the mean of its divisors is an integer number (10015556185).

Almost surely, 2^20031112369 is an apocalyptic number.

It is an amenable number.

20031112369 is a deficient number, since it is larger than the sum of its proper divisors (1).

20031112369 is an equidigital number, since it uses as much as digits as its factorization.

20031112369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 20031112369 in words is "twenty billion, thirty-one million, one hundred twelve thousand, three hundred sixty-nine".