31321302110131 has 16 divisors (see below), whose sum is σ = 34268447461248. Its totient is φ = 28390788630400.

The previous prime is 31321302110123. The next prime is 31321302110141. The reversal of 31321302110131 is 13101120312313.

It is a cyclic number.

It is not a de Polignac number, because 31321302110131 - 2³ = 31321302110123 is a prime.

It is a super-2 number, since 2×31321302110131² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31321302110101) 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, 112397451 + ... + 112675771.

It is an arithmetic number, because the mean of its divisors is an integer number (2141777966328).

Almost surely, 2^{31321302110131} is an apocalyptic number.

31321302110131 is a deficient number, since it is larger than the sum of its proper divisors (2947145351117).

31321302110131 is a wasteful number, since it uses less digits than its factorization.

31321302110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308162.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 31321302110131 its reverse (13101120312313), we get a palindrome (44422422422444).

The spelling of 31321302110131 in words is "thirty-one trillion, three hundred twenty-one billion, three hundred two million, one hundred ten thousand, one hundred thirty-one".