10394773121 has 2 divisors, whose sum is σ = 10394773122. Its totient is φ = 10394773120.

The previous prime is 10394773049. The next prime is 10394773127. The reversal of 10394773121 is 12137749301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6829369600 + 3565403521 = 82640^2 + 59711^2 .

It is a cyclic number.

It is not a de Polignac number, because 10394773121 - 2¹⁴ = 10394756737 is a prime.

It is not a weakly prime, because it can be changed into another prime (10394773127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5197386560 + 5197386561.

It is an arithmetic number, because the mean of its divisors is an integer number (5197386561).

Almost surely, 2^10394773121 is an apocalyptic number.

It is an amenable number.

10394773121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10394773121 is an equidigital number, since it uses as much as digits as its factorization.

10394773121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The spelling of 10394773121 in words is "ten billion, three hundred ninety-four million, seven hundred seventy-three thousand, one hundred twenty-one".