20131101332331 has 8 divisors (see below), whose sum is σ = 29281601937984. Its totient is φ = 12200667474120.

The previous prime is 20131101332323. The next prime is 20131101332513. The reversal of 20131101332331 is 13323310113102.

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

It is not a de Polignac number, because 20131101332331 - 2³ = 20131101332323 is a prime.

It is a super-2 number, since 2×20131101332331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20131101336331) 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, 305016686821 + ... + 305016686886.

It is an arithmetic number, because the mean of its divisors is an integer number (3660200242248).

Almost surely, 2^{20131101332331} is an apocalyptic number.

20131101332331 is a deficient number, since it is larger than the sum of its proper divisors (9150500605653).

20131101332331 is a wasteful number, since it uses less digits than its factorization.

20131101332331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610033373721.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 20131101332331 its reverse (13323310113102), we get a palindrome (33454411445433).

The spelling of 20131101332331 in words is "twenty trillion, one hundred thirty-one billion, one hundred one million, three hundred thirty-two thousand, three hundred thirty-one".