31321103101131 has 16 divisors (see below), whose sum is σ = 41771935411200. Its totient is φ = 20875503782400.

The previous prime is 31321103101097. The next prime is 31321103101157. The reversal of 31321103101131 is 13110130112313.

It is not a de Polignac number, because 31321103101131 - 2⁹ = 31321103100619 is a prime.

It is a super-3 number, since 3×31321103101131³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 31321103101098 and 31321103101107.

It is not an unprimeable number, because it can be changed into a prime (31321103101031) 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, 201732331 + ... + 201887531.

It is an arithmetic number, because the mean of its divisors is an integer number (2610745963200).

Almost surely, 2^{31321103101131} is an apocalyptic number.

31321103101131 is a deficient number, since it is larger than the sum of its proper divisors (10450832310069).

31321103101131 is a wasteful number, since it uses less digits than its factorization.

31321103101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171626.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 31321103101131 its reverse (13110130112313), we get a palindrome (44431233213444).

The spelling of 31321103101131 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred three million, one hundred one thousand, one hundred thirty-one".