20198112037 has 2 divisors, whose sum is σ = 20198112038. Its totient is φ = 20198112036.

The previous prime is 20198111987. The next prime is 20198112079. The reversal of 20198112037 is 73021189102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18141126721 + 2056985316 = 134689^2 + 45354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20198112037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20198111993 and 20198112011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20198112637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10099056018 + 10099056019.

It is an arithmetic number, because the mean of its divisors is an integer number (10099056019).

Almost surely, 2^20198112037 is an apocalyptic number.

It is an amenable number.

20198112037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20198112037 is an equidigital number, since it uses as much as digits as its factorization.

20198112037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 20198112037 in words is "twenty billion, one hundred ninety-eight million, one hundred twelve thousand, thirty-seven".