1235200999973 has 2 divisors, whose sum is σ = 1235200999974. Its totient is φ = 1235200999972.

The previous prime is 1235200999961. The next prime is 1235201000003. The reversal of 1235200999973 is 3799990025321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010632111204 + 224568888769 = 1005302^2 + 473887^2 .

It is a cyclic number.

It is not a de Polignac number, because 1235200999973 - 2¹⁸ = 1235200737829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235200999913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617600499986 + 617600499987.

It is an arithmetic number, because the mean of its divisors is an integer number (617600499987).

Almost surely, 2^{1235200999973} is an apocalyptic number.

It is an amenable number.

1235200999973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235200999973 is an equidigital number, since it uses as much as digits as its factorization.

1235200999973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8266860, while the sum is 59.

The spelling of 1235200999973 in words is "one trillion, two hundred thirty-five billion, two hundred million, nine hundred ninety-nine thousand, nine hundred seventy-three".