133403424013421 has 8 divisors (see below), whose sum is σ = 134454440770560. Its totient is φ = 132352416570528.

The previous prime is 133403424013397. The next prime is 133403424013481. The reversal of 133403424013421 is 124310424304331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133403424013421 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 (133403424013481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27976850 + ... + 32396156.

It is an arithmetic number, because the mean of its divisors is an integer number (16806805096320).

Almost surely, 2^{133403424013421} is an apocalyptic number.

It is an amenable number.

133403424013421 is a deficient number, since it is larger than the sum of its proper divisors (1051016757139).

133403424013421 is a wasteful number, since it uses less digits than its factorization.

133403424013421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657123.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 133403424013421 its reverse (124310424304331), we get a palindrome (257713848317752).

The spelling of 133403424013421 in words is "one hundred thirty-three trillion, four hundred three billion, four hundred twenty-four million, thirteen thousand, four hundred twenty-one".