208073021273401 has 2 divisors, whose sum is σ = 208073021273402. Its totient is φ = 208073021273400.

The previous prime is 208073021273353. The next prime is 208073021273417. The reversal of 208073021273401 is 104372120370802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125475842560000 + 82597178713401 = 11201600^2 + 9088299^2 .

It is a cyclic number.

It is not a de Polignac number, because 208073021273401 - 2²⁵ = 208072987718969 is a prime.

It is not a weakly prime, because it can be changed into another prime (208073021273701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104036510636700 + 104036510636701.

It is an arithmetic number, because the mean of its divisors is an integer number (104036510636701).

Almost surely, 2^{208073021273401} is an apocalyptic number.

It is an amenable number.

208073021273401 is a deficient number, since it is larger than the sum of its proper divisors (1).

208073021273401 is an equidigital number, since it uses as much as digits as its factorization.

208073021273401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 208073021273401 in words is "two hundred eight trillion, seventy-three billion, twenty-one million, two hundred seventy-three thousand, four hundred one".