133401313510321 has 4 divisors (see below), whose sum is σ = 136503669638512. Its totient is φ = 130298957382132.

The previous prime is 133401313510279. The next prime is 133401313510349. The reversal of 133401313510321 is 123015313104331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133401313510321 - 2³¹ = 133399166026673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133401313510921) 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, 1551178064031 + ... + 1551178064116.

It is an arithmetic number, because the mean of its divisors is an integer number (34125917409628).

Almost surely, 2^{133401313510321} is an apocalyptic number.

It is an amenable number.

133401313510321 is a deficient number, since it is larger than the sum of its proper divisors (3102356128191).

133401313510321 is an equidigital number, since it uses as much as digits as its factorization.

133401313510321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102356128190.

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 133401313510321 its reverse (123015313104331), we get a palindrome (256416626614652).

The spelling of 133401313510321 in words is "one hundred thirty-three trillion, four hundred one billion, three hundred thirteen million, five hundred ten thousand, three hundred twenty-one".