2131024123 has 2 divisors, whose sum is σ = 2131024124. Its totient is φ = 2131024122.

The previous prime is 2131024121. The next prime is 2131024153. The reversal of 2131024123 is 3214201312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131024123 - 2¹ = 2131024121 is a prime.

Together with 2131024121, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2131024123.

It is not a weakly prime, because it can be changed into another prime (2131024121) 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 as a sum of consecutive naturals, namely, 1065512061 + 1065512062.

It is an arithmetic number, because the mean of its divisors is an integer number (1065512062).

Almost surely, 2^2131024123 is an apocalyptic number.

2131024123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131024123 is an equidigital number, since it uses as much as digits as its factorization.

2131024123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2131024123 is about 46163.0168316587. The cubic root of 2131024123 is about 1286.8545288514.

Adding to 2131024123 its reverse (3214201312), we get a palindrome (5345225435).

The spelling of 2131024123 in words is "two billion, one hundred thirty-one million, twenty-four thousand, one hundred twenty-three".