33000223961 has 2 divisors, whose sum is σ = 33000223962. Its totient is φ = 33000223960.

The previous prime is 33000223957. The next prime is 33000224051. The reversal of 33000223961 is 16932200033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29659383961 + 3340840000 = 172219^2 + 57800^2 .

It is a cyclic number.

It is not a de Polignac number, because 33000223961 - 2² = 33000223957 is a prime.

It is not a weakly prime, because it can be changed into another prime (33000222961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16500111980 + 16500111981.

It is an arithmetic number, because the mean of its divisors is an integer number (16500111981).

Almost surely, 2^33000223961 is an apocalyptic number.

It is an amenable number.

33000223961 is a deficient number, since it is larger than the sum of its proper divisors (1).

33000223961 is an equidigital number, since it uses as much as digits as its factorization.

33000223961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 33000223961 its reverse (16932200033), we get a palindrome (49932423994).

The spelling of 33000223961 in words is "thirty-three billion, two hundred twenty-three thousand, nine hundred sixty-one".