20012112424237 has 2 divisors, whose sum is σ = 20012112424238. Its totient is φ = 20012112424236.

The previous prime is 20012112424229. The next prime is 20012112424261. The reversal of 20012112424237 is 73242421121002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19940743836036 + 71368588201 = 4465506^2 + 267149^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012112424237 - 2³ = 20012112424229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012112424199 and 20012112424208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012112424037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006056212118 + 10006056212119.

It is an arithmetic number, because the mean of its divisors is an integer number (10006056212119).

Almost surely, 2^{20012112424237} is an apocalyptic number.

It is an amenable number.

20012112424237 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012112424237 is an equidigital number, since it uses as much as digits as its factorization.

20012112424237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

Adding to 20012112424237 its reverse (73242421121002), we get a palindrome (93254533545239).

The spelling of 20012112424237 in words is "twenty trillion, twelve billion, one hundred twelve million, four hundred twenty-four thousand, two hundred thirty-seven".