103405139869 has 2 divisors, whose sum is σ = 103405139870. Its totient is φ = 103405139868.

The previous prime is 103405139837. The next prime is 103405139923. The reversal of 103405139869 is 968931504301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100317892900 + 3087246969 = 316730^2 + 55563^2 .

It is an emirp because it is prime and its reverse (968931504301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103405139869 - 2⁵ = 103405139837 is a prime.

It is a super-2 number, since 2×103405139869² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103405139809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51702569934 + 51702569935.

It is an arithmetic number, because the mean of its divisors is an integer number (51702569935).

Almost surely, 2^103405139869 is an apocalyptic number.

It is an amenable number.

103405139869 is a deficient number, since it is larger than the sum of its proper divisors (1).

103405139869 is an equidigital number, since it uses as much as digits as its factorization.

103405139869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 103405139869 in words is "one hundred three billion, four hundred five million, one hundred thirty-nine thousand, eight hundred sixty-nine".