133120421321215 has 16 divisors (see below), whose sum is σ = 169143927406272. Its totient is φ = 100230254820864.

The previous prime is 133120421321197. The next prime is 133120421321219. The reversal of 133120421321215 is 512123124021331.

It is a cyclic number.

It is not a de Polignac number, because 133120421321215 - 2⁷ = 133120421321087 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 (133120421321219) 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, 7038744 + ... + 17770333.

It is an arithmetic number, because the mean of its divisors is an integer number (10571495462892).

Almost surely, 2^{133120421321215} is an apocalyptic number.

133120421321215 is a deficient number, since it is larger than the sum of its proper divisors (36023506085057).

133120421321215 is a wasteful number, since it uses less digits than its factorization.

133120421321215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24872226.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 133120421321215 its reverse (512123124021331), we get a palindrome (645243545342546).

The spelling of 133120421321215 in words is "one hundred thirty-three trillion, one hundred twenty billion, four hundred twenty-one million, three hundred twenty-one thousand, two hundred fifteen".