121986983273 has 2 divisors, whose sum is σ = 121986983274. Its totient is φ = 121986983272.

The previous prime is 121986983269. The next prime is 121986983471. The reversal of 121986983273 is 372389689121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85014231184 + 36972752089 = 291572^2 + 192283^2 .

It is an emirp because it is prime and its reverse (372389689121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121986983273 - 2² = 121986983269 is a prime.

It is not a weakly prime, because it can be changed into another prime (121986953273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60993491636 + 60993491637.

It is an arithmetic number, because the mean of its divisors is an integer number (60993491637).

Almost surely, 2^121986983273 is an apocalyptic number.

It is an amenable number.

121986983273 is a deficient number, since it is larger than the sum of its proper divisors (1).

121986983273 is an equidigital number, since it uses as much as digits as its factorization.

121986983273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 59.

The spelling of 121986983273 in words is "one hundred twenty-one billion, nine hundred eighty-six million, nine hundred eighty-three thousand, two hundred seventy-three".