133120311321 has 16 divisors (see below), whose sum is σ = 184998195200. Its totient is φ = 85050239760.

The previous prime is 133120311319. The next prime is 133120311323. The reversal of 133120311321 is 123113021331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133120311319) and next prime (133120311323).

It is not a de Polignac number, because 133120311321 - 2¹ = 133120311319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133120311323) 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, 6938971 + ... + 6958128.

It is an arithmetic number, because the mean of its divisors is an integer number (11562387200).

Almost surely, 2^133120311321 is an apocalyptic number.

It is an amenable number.

133120311321 is a deficient number, since it is larger than the sum of its proper divisors (51877883879).

133120311321 is a wasteful number, since it uses less digits than its factorization.

133120311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13897236.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 133120311321 its reverse (123113021331), we get a palindrome (256233332652).

The spelling of 133120311321 in words is "one hundred thirty-three billion, one hundred twenty million, three hundred eleven thousand, three hundred twenty-one".