203001201973 has 2 divisors, whose sum is σ = 203001201974. Its totient is φ = 203001201972.

The previous prime is 203001201967. The next prime is 203001202049. The reversal of 203001201973 is 379102100302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114326486884 + 88674715089 = 338122^2 + 297783^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203001201973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203001201373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101500600986 + 101500600987.

It is an arithmetic number, because the mean of its divisors is an integer number (101500600987).

Almost surely, 2^203001201973 is an apocalyptic number.

It is an amenable number.

203001201973 is a deficient number, since it is larger than the sum of its proper divisors (1).

203001201973 is an equidigital number, since it uses as much as digits as its factorization.

203001201973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The spelling of 203001201973 in words is "two hundred three billion, one million, two hundred one thousand, nine hundred seventy-three".