133033034021 has 4 divisors (see below), whose sum is σ = 133035591852. Its totient is φ = 133030476192.

The previous prime is 133033034003. The next prime is 133033034039. The reversal of 133033034021 is 120430330331.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (133033034003) and next prime (133033034039).

It can be written as a sum of positive squares in 2 ways, for example, as 79475503396 + 53557530625 = 281914^2 + 231425^2 .

It is a cyclic number.

It is not a de Polignac number, because 133033034021 - 2²² = 133028839717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133033034041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199246 + ... + 1305471.

It is an arithmetic number, because the mean of its divisors is an integer number (33258897963).

Almost surely, 2^133033034021 is an apocalyptic number.

It is an amenable number.

133033034021 is a deficient number, since it is larger than the sum of its proper divisors (2557831).

133033034021 is an equidigital number, since it uses as much as digits as its factorization.

133033034021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557830.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 133033034021 its reverse (120430330331), we get a palindrome (253463364352).

The spelling of 133033034021 in words is "one hundred thirty-three billion, thirty-three million, thirty-four thousand, twenty-one".