20311310332133 has 8 divisors (see below), whose sum is σ = 20325827166528. Its totient is φ = 20296793978784.

The previous prime is 20311310332081. The next prime is 20311310332141. The reversal of 20311310332133 is 33123301311302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20311310332133 - 2³⁰ = 20310236590309 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 (20311310332633) 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, 155740610 + ... + 155870972.

It is an arithmetic number, because the mean of its divisors is an integer number (2540728395816).

Almost surely, 2^{20311310332133} is an apocalyptic number.

It is an amenable number.

20311310332133 is a deficient number, since it is larger than the sum of its proper divisors (14516834395).

20311310332133 is a wasteful number, since it uses less digits than its factorization.

20311310332133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240523.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 20311310332133 its reverse (33123301311302), we get a palindrome (53434611643435).

The spelling of 20311310332133 in words is "twenty trillion, three hundred eleven billion, three hundred ten million, three hundred thirty-two thousand, one hundred thirty-three".