133133141022421 has 16 divisors (see below), whose sum is σ = 141012930406320. Its totient is φ = 125258738503680.

The previous prime is 133133141022403. The next prime is 133133141022433. The reversal of 133133141022421 is 124220141331331.

It can be written as a sum of positive squares in 8 ways, for example, as 4214147959921 + 128918993062500 = 2052839^2 + 11354250^2 .

It is a cyclic number.

It is not a de Polignac number, because 133133141022421 - 2⁷ = 133133141022293 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 (133133141022461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 779560681 + ... + 779731441.

It is an arithmetic number, because the mean of its divisors is an integer number (8813308150395).

Almost surely, 2^{133133141022421} is an apocalyptic number.

It is an amenable number.

133133141022421 is a deficient number, since it is larger than the sum of its proper divisors (7879789383899).

133133141022421 is a wasteful number, since it uses less digits than its factorization.

133133141022421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186264.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 133133141022421 its reverse (124220141331331), we get a palindrome (257353282353752).

The spelling of 133133141022421 in words is "one hundred thirty-three trillion, one hundred thirty-three billion, one hundred forty-one million, twenty-two thousand, four hundred twenty-one".