121610005973 has 2 divisors, whose sum is σ = 121610005974. Its totient is φ = 121610005972.

The previous prime is 121610005879. The next prime is 121610006033. The reversal of 121610005973 is 379500016121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107966130724 + 13643875249 = 328582^2 + 116807^2 .

It is a cyclic number.

It is not a de Polignac number, because 121610005973 - 2¹⁰ = 121610004949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121610005273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60805002986 + 60805002987.

It is an arithmetic number, because the mean of its divisors is an integer number (60805002987).

Almost surely, 2^121610005973 is an apocalyptic number.

It is an amenable number.

121610005973 is a deficient number, since it is larger than the sum of its proper divisors (1).

121610005973 is an equidigital number, since it uses as much as digits as its factorization.

121610005973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The spelling of 121610005973 in words is "one hundred twenty-one billion, six hundred ten million, five thousand, nine hundred seventy-three".