10115531147 has 2 divisors, whose sum is σ = 10115531148. Its totient is φ = 10115531146.

The previous prime is 10115531141. The next prime is 10115531161. The reversal of 10115531147 is 74113551101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10115531147 is a prime.

It is not a weakly prime, because it can be changed into another prime (10115531141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5057765573 + 5057765574.

It is an arithmetic number, because the mean of its divisors is an integer number (5057765574).

Almost surely, 2^10115531147 is an apocalyptic number.

10115531147 is a deficient number, since it is larger than the sum of its proper divisors (1).

10115531147 is an equidigital number, since it uses as much as digits as its factorization.

10115531147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 29.

The spelling of 10115531147 in words is "ten billion, one hundred fifteen million, five hundred thirty-one thousand, one hundred forty-seven".