2145320530427 has 2 divisors, whose sum is σ = 2145320530428. Its totient is φ = 2145320530426.

The previous prime is 2145320530411. The next prime is 2145320530439. The reversal of 2145320530427 is 7240350235412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2145320530427 - 2⁴ = 2145320530411 is a prime.

It is not a weakly prime, because it can be changed into another prime (2145320130427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072660265213 + 1072660265214.

It is an arithmetic number, because the mean of its divisors is an integer number (1072660265214).

Almost surely, 2^{2145320530427} is an apocalyptic number.

2145320530427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145320530427 is an equidigital number, since it uses as much as digits as its factorization.

2145320530427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 38.

Adding to 2145320530427 its reverse (7240350235412), we get a palindrome (9385670765839).

The spelling of 2145320530427 in words is "two trillion, one hundred forty-five billion, three hundred twenty million, five hundred thirty thousand, four hundred twenty-seven".