20115000371 has 2 divisors, whose sum is σ = 20115000372. Its totient is φ = 20115000370.

The previous prime is 20115000293. The next prime is 20115000403. The reversal of 20115000371 is 17300051102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20115000371 is a prime.

It is a super-2 number, since 2×20115000371² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20115000571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10057500185 + 10057500186.

It is an arithmetic number, because the mean of its divisors is an integer number (10057500186).

Almost surely, 2^20115000371 is an apocalyptic number.

20115000371 is a deficient number, since it is larger than the sum of its proper divisors (1).

20115000371 is an equidigital number, since it uses as much as digits as its factorization.

20115000371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

Adding to 20115000371 its reverse (17300051102), we get a palindrome (37415051473).

The spelling of 20115000371 in words is "twenty billion, one hundred fifteen million, three hundred seventy-one", and thus it is an aban number.