103402145021243 has 2 divisors, whose sum is σ = 103402145021244. Its totient is φ = 103402145021242.

The previous prime is 103402145021239. The next prime is 103402145021321. The reversal of 103402145021243 is 342120541204301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103402145021243 - 2² = 103402145021239 is a prime.

It is not a weakly prime, because it can be changed into another prime (103402145821243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51701072510621 + 51701072510622.

It is an arithmetic number, because the mean of its divisors is an integer number (51701072510622).

Almost surely, 2^{103402145021243} is an apocalyptic number.

103402145021243 is a deficient number, since it is larger than the sum of its proper divisors (1).

103402145021243 is an equidigital number, since it uses as much as digits as its factorization.

103402145021243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 103402145021243 its reverse (342120541204301), we get a palindrome (445522686225544).

The spelling of 103402145021243 in words is "one hundred three trillion, four hundred two billion, one hundred forty-five million, twenty-one thousand, two hundred forty-three".