103431401291849 has 2 divisors, whose sum is σ = 103431401291850. Its totient is φ = 103431401291848.

The previous prime is 103431401291819. The next prime is 103431401291887. The reversal of 103431401291849 is 948192104134301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102296232505600 + 1135168786249 = 10114160^2 + 1065443^2 .

It is a cyclic number.

It is not a de Polignac number, because 103431401291849 - 2⁴⁴ = 85839215247433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103431401291797 and 103431401291806.

It is not a weakly prime, because it can be changed into another prime (103431401291819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51715700645924 + 51715700645925.

It is an arithmetic number, because the mean of its divisors is an integer number (51715700645925).

Almost surely, 2^{103431401291849} is an apocalyptic number.

It is an amenable number.

103431401291849 is a deficient number, since it is larger than the sum of its proper divisors (1).

103431401291849 is an equidigital number, since it uses as much as digits as its factorization.

103431401291849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 103431401291849 in words is "one hundred three trillion, four hundred thirty-one billion, four hundred one million, two hundred ninety-one thousand, eight hundred forty-nine".