121944000847 has 2 divisors, whose sum is σ = 121944000848. Its totient is φ = 121944000846.

The previous prime is 121944000821. The next prime is 121944000853. The reversal of 121944000847 is 748000449121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121944000847 - 2¹⁵ = 121943968079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121944000877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60972000423 + 60972000424.

It is an arithmetic number, because the mean of its divisors is an integer number (60972000424).

Almost surely, 2^121944000847 is an apocalyptic number.

121944000847 is a deficient number, since it is larger than the sum of its proper divisors (1).

121944000847 is an equidigital number, since it uses as much as digits as its factorization.

121944000847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

Adding to 121944000847 its reverse (748000449121), we get a palindrome (869944449968).

The spelling of 121944000847 in words is "one hundred twenty-one billion, nine hundred forty-four million, eight hundred forty-seven", and thus it is an aban number.