133020355542261 has 12 divisors (see below), whose sum is σ = 194949942558336. Its totient is φ = 80618397298120.

The previous prime is 133020355542259. The next prime is 133020355542337. The reversal of 133020355542261 is 162245553020331.

It is not a de Polignac number, because 133020355542261 - 2¹ = 133020355542259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133020355546261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183223629861 + ... + 183223630586.

It is an arithmetic number, because the mean of its divisors is an integer number (16245828546528).

Almost surely, 2^{133020355542261} is an apocalyptic number.

133020355542261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133020355542261 is a deficient number, since it is larger than the sum of its proper divisors (61929587016075).

133020355542261 is a wasteful number, since it uses less digits than its factorization.

133020355542261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366447260472 (or 366447260461 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 133020355542261 in words is "one hundred thirty-three trillion, twenty billion, three hundred fifty-five million, five hundred forty-two thousand, two hundred sixty-one".