2131012547 has 2 divisors, whose sum is σ = 2131012548. Its totient is φ = 2131012546.

The previous prime is 2131012523. The next prime is 2131012549. The reversal of 2131012547 is 7452101312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2131012547 - 2⁶ = 2131012483 is a prime.

Together with 2131012549, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2131012549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065506273 + 1065506274.

It is an arithmetic number, because the mean of its divisors is an integer number (1065506274).

Almost surely, 2^2131012547 is an apocalyptic number.

2131012547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131012547 is an equidigital number, since it uses as much as digits as its factorization.

2131012547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2131012547 is about 46162.8914497348. The cubic root of 2131012547 is about 1286.8521987268.

Adding to 2131012547 its reverse (7452101312), we get a palindrome (9583113859).

The spelling of 2131012547 in words is "two billion, one hundred thirty-one million, twelve thousand, five hundred forty-seven".