2103000120257 has 2 divisors, whose sum is σ = 2103000120258. Its totient is φ = 2103000120256.

The previous prime is 2103000120239. The next prime is 2103000120311. The reversal of 2103000120257 is 7520210003012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1922745530161 + 180254590096 = 1386631^2 + 424564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103000120257 - 2¹⁶ = 2103000054721 is a prime.

It is not a weakly prime, because it can be changed into another prime (2103000120857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051500060128 + 1051500060129.

It is an arithmetic number, because the mean of its divisors is an integer number (1051500060129).

Almost surely, 2^{2103000120257} is an apocalyptic number.

It is an amenable number.

2103000120257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103000120257 is an equidigital number, since it uses as much as digits as its factorization.

2103000120257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

Adding to 2103000120257 its reverse (7520210003012), we get a palindrome (9623210123269).

The spelling of 2103000120257 in words is "two trillion, one hundred three billion, one hundred twenty thousand, two hundred fifty-seven".