133020345026321 has 32 divisors (see below), whose sum is σ = 143577131765760. Its totient is φ = 122840884924416.

The previous prime is 133020345026281. The next prime is 133020345026329. The reversal of 133020345026321 is 123620543020331.

It is a de Polignac number, because none of the positive numbers 2^k-133020345026321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133020345026329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1814627756 + ... + 1814701058.

It is an arithmetic number, because the mean of its divisors is an integer number (4486785367680).

Almost surely, 2^{133020345026321} is an apocalyptic number.

It is an amenable number.

133020345026321 is a deficient number, since it is larger than the sum of its proper divisors (10556786739439).

133020345026321 is a wasteful number, since it uses less digits than its factorization.

133020345026321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81533.

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 133020345026321 its reverse (123620543020331), we get a palindrome (256640888046652).

The spelling of 133020345026321 in words is "one hundred thirty-three trillion, twenty billion, three hundred forty-five million, twenty-six thousand, three hundred twenty-one".