133005301431421 has 4 divisors (see below), whose sum is σ = 133007740115644. Its totient is φ = 133002862747200.

The previous prime is 133005301431397. The next prime is 133005301431449. The reversal of 133005301431421 is 124134103500331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21419670603321 + 111585630828100 = 4628139^2 + 10563410^2 .

It is a cyclic number.

It is not a de Polignac number, because 133005301431421 - 2⁹ = 133005301430909 is a prime.

It is a super-2 number, since 2×133005301431421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133005301431451) 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, 1219260300 + ... + 1219369381.

It is an arithmetic number, because the mean of its divisors is an integer number (33251935028911).

Almost surely, 2^{133005301431421} is an apocalyptic number.

It is an amenable number.

133005301431421 is a deficient number, since it is larger than the sum of its proper divisors (2438684223).

133005301431421 is an equidigital number, since it uses as much as digits as its factorization.

133005301431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438684222.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 133005301431421 its reverse (124134103500331), we get a palindrome (257139404931752).

The spelling of 133005301431421 in words is "one hundred thirty-three trillion, five billion, three hundred one million, four hundred thirty-one thousand, four hundred twenty-one".