103040142493 has 2 divisors, whose sum is σ = 103040142494. Its totient is φ = 103040142492.

The previous prime is 103040142481. The next prime is 103040142497. The reversal of 103040142493 is 394241040301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99681012729 + 3359129764 = 315723^2 + 57958^2 .

It is a cyclic number.

It is not a de Polignac number, because 103040142493 - 2²⁹ = 102503271581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103040142497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51520071246 + 51520071247.

It is an arithmetic number, because the mean of its divisors is an integer number (51520071247).

Almost surely, 2^103040142493 is an apocalyptic number.

It is an amenable number.

103040142493 is a deficient number, since it is larger than the sum of its proper divisors (1).

103040142493 is an equidigital number, since it uses as much as digits as its factorization.

103040142493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 103040142493 its reverse (394241040301), we get a palindrome (497281182794).

The spelling of 103040142493 in words is "one hundred three billion, forty million, one hundred forty-two thousand, four hundred ninety-three".