31320110033121 has 32 divisors (see below), whose sum is σ = 54420462690048. Its totient is φ = 15548703621120.

The previous prime is 31320110033117. The next prime is 31320110033141. The reversal of 31320110033121 is 12133001102313.

It is a happy number.

It is not a de Polignac number, because 31320110033121 - 2² = 31320110033117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (31320110033101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3374280000 + ... + 3374289281.

It is an arithmetic number, because the mean of its divisors is an integer number (1700639459064).

Almost surely, 2^{31320110033121} is an apocalyptic number.

It is an amenable number.

31320110033121 is a deficient number, since it is larger than the sum of its proper divisors (23100352656927).

31320110033121 is a wasteful number, since it uses less digits than its factorization.

31320110033121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6748569321.

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

Adding to 31320110033121 its reverse (12133001102313), we get a palindrome (43453111135434).

The spelling of 31320110033121 in words is "thirty-one trillion, three hundred twenty billion, one hundred ten million, thirty-three thousand, one hundred twenty-one".