133322023021 has 6 divisors (see below), whose sum is σ = 146544041966. Its totient is φ = 121201839000.

The previous prime is 133322023013. The next prime is 133322023067. The reversal of 133322023021 is 120320223331.

It can be written as a sum of positive squares in only one way, i.e., 116273498121 + 17048524900 = 340989^2 + 130570^2 .

It is not a de Polignac number, because 133322023021 - 2³ = 133322023013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133322022983 and 133322023001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133322123021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550917330 + ... + 550917571.

Almost surely, 2^133322023021 is an apocalyptic number.

133322023021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133322023021 is a deficient number, since it is larger than the sum of its proper divisors (13222018945).

133322023021 is a wasteful number, since it uses less digits than its factorization.

133322023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101834923 (or 1101834912 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 133322023021 its reverse (120320223331), we get a palindrome (253642246352).

The spelling of 133322023021 in words is "one hundred thirty-three billion, three hundred twenty-two million, twenty-three thousand, twenty-one".