2040203711257 has 2 divisors, whose sum is σ = 2040203711258. Its totient is φ = 2040203711256.

The previous prime is 2040203711239. The next prime is 2040203711263. The reversal of 2040203711257 is 7521173020402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1700196935056 + 340006776201 = 1303916^2 + 583101^2 .

It is a cyclic number.

It is not a de Polignac number, because 2040203711257 - 2¹⁹ = 2040203186969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2040203711267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020101855628 + 1020101855629.

It is an arithmetic number, because the mean of its divisors is an integer number (1020101855629).

Almost surely, 2^{2040203711257} is an apocalyptic number.

It is an amenable number.

2040203711257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040203711257 is an equidigital number, since it uses as much as digits as its factorization.

2040203711257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

Adding to 2040203711257 its reverse (7521173020402), we get a palindrome (9561376731659).

The spelling of 2040203711257 in words is "two trillion, forty billion, two hundred three million, seven hundred eleven thousand, two hundred fifty-seven".