20115101141 has 4 divisors (see below), whose sum is σ = 20119364832. Its totient is φ = 20110837452.

The previous prime is 20115101137. The next prime is 20115101159. The reversal of 20115101141 is 14110151102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14110151102 = 2 ⋅7055075551.

It is a cyclic number.

It is not a de Polignac number, because 20115101141 - 2² = 20115101137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20115101341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2124761 + ... + 2134206.

It is an arithmetic number, because the mean of its divisors is an integer number (5029841208).

Almost surely, 2^20115101141 is an apocalyptic number.

It is an amenable number.

20115101141 is a deficient number, since it is larger than the sum of its proper divisors (4263691).

20115101141 is an equidigital number, since it uses as much as digits as its factorization.

20115101141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263690.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 20115101141 its reverse (14110151102), we get a palindrome (34225252243).

The spelling of 20115101141 in words is "twenty billion, one hundred fifteen million, one hundred one thousand, one hundred forty-one".