2145201054413 has 2 divisors, whose sum is σ = 2145201054414. Its totient is φ = 2145201054412.

The previous prime is 2145201054371. The next prime is 2145201054431. The reversal of 2145201054413 is 3144501025412.

Together with next prime (2145201054431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1873454662564 + 271746391849 = 1368742^2 + 521293^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145201054413 - 2¹⁸ = 2145200792269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2145201054413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145201054473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072600527206 + 1072600527207.

It is an arithmetic number, because the mean of its divisors is an integer number (1072600527207).

Almost surely, 2^{2145201054413} is an apocalyptic number.

It is an amenable number.

2145201054413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145201054413 is an equidigital number, since it uses as much as digits as its factorization.

2145201054413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 2145201054413 its reverse (3144501025412), we get a palindrome (5289702079825).

The spelling of 2145201054413 in words is "two trillion, one hundred forty-five billion, two hundred one million, fifty-four thousand, four hundred thirteen".