103538721413 has 2 divisors, whose sum is σ = 103538721414. Its totient is φ = 103538721412.

The previous prime is 103538721383. The next prime is 103538721439. The reversal of 103538721413 is 314127835301.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83147452609 + 20391268804 = 288353^2 + 142798^2 .

It is a cyclic number.

It is not a de Polignac number, because 103538721413 - 2¹⁶ = 103538655877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103538721613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51769360706 + 51769360707.

It is an arithmetic number, because the mean of its divisors is an integer number (51769360707).

Almost surely, 2^103538721413 is an apocalyptic number.

It is an amenable number.

103538721413 is a deficient number, since it is larger than the sum of its proper divisors (1).

103538721413 is an equidigital number, since it uses as much as digits as its factorization.

103538721413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 103538721413 in words is "one hundred three billion, five hundred thirty-eight million, seven hundred twenty-one thousand, four hundred thirteen".