403202999981 has 2 divisors, whose sum is σ = 403202999982. Its totient is φ = 403202999980.

The previous prime is 403202999977. The next prime is 403203000007. The reversal of 403202999981 is 189999202304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281182030756 + 122020969225 = 530266^2 + 349315^2 .

It is a cyclic number.

It is not a de Polignac number, because 403202999981 - 2² = 403202999977 is a prime.

It is a super-2 number, since 2×403202999981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403202999971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201601499990 + 201601499991.

It is an arithmetic number, because the mean of its divisors is an integer number (201601499991).

Almost surely, 2^403202999981 is an apocalyptic number.

It is an amenable number.

403202999981 is a deficient number, since it is larger than the sum of its proper divisors (1).

403202999981 is an equidigital number, since it uses as much as digits as its factorization.

403202999981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The spelling of 403202999981 in words is "four hundred three billion, two hundred two million, nine hundred ninety-nine thousand, nine hundred eighty-one".