133121101331 has 8 divisors (see below), whose sum is σ = 134680815360. Its totient is φ = 131566527432.

The previous prime is 133121101313. The next prime is 133121101343. The reversal of 133121101331 is 133101121331.

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-133121101331 is a prime.

It is a super-2 number, since 2×133121101331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133121101831) 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, 1232921 + ... + 1336538.

It is an arithmetic number, because the mean of its divisors is an integer number (16835101920).

Almost surely, 2^133121101331 is an apocalyptic number.

133121101331 is a deficient number, since it is larger than the sum of its proper divisors (1559714029).

133121101331 is a wasteful number, since it uses less digits than its factorization.

133121101331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570065.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 133121101331 its reverse (133101121331), we get a palindrome (266222222662).

The spelling of 133121101331 in words is "one hundred thirty-three billion, one hundred twenty-one million, one hundred one thousand, three hundred thirty-one".