107503994821 has 2 divisors, whose sum is σ = 107503994822. Its totient is φ = 107503994820.

The previous prime is 107503994809. The next prime is 107503994827. The reversal of 107503994821 is 128499305701.

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., 99442469025 + 8061525796 = 315345^2 + 89786^2 .

It is a cyclic number.

It is not a de Polignac number, because 107503994821 - 2⁵ = 107503994789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107503994827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53751997410 + 53751997411.

It is an arithmetic number, because the mean of its divisors is an integer number (53751997411).

Almost surely, 2^107503994821 is an apocalyptic number.

It is an amenable number.

107503994821 is a deficient number, since it is larger than the sum of its proper divisors (1).

107503994821 is an equidigital number, since it uses as much as digits as its factorization.

107503994821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 107503994821 in words is "one hundred seven billion, five hundred three million, nine hundred ninety-four thousand, eight hundred twenty-one".