31132120311131 has 8 divisors (see below), whose sum is σ = 36806447658720. Its totient is φ = 25764513360768.

The previous prime is 31132120311121. The next prime is 31132120311133. The reversal of 31132120311131 is 13111302123113.

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

It is not a de Polignac number, because 31132120311131 - 2¹⁴ = 31132120294747 is a prime.

It is a super-2 number, since 2×31132120311131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31132120311097 and 31132120311106.

It is not an unprimeable number, because it can be changed into a prime (31132120311133) 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, 76680099086 + ... + 76680099491.

It is an arithmetic number, because the mean of its divisors is an integer number (4600805957340).

Almost surely, 2^{31132120311131} is an apocalyptic number.

31132120311131 is a deficient number, since it is larger than the sum of its proper divisors (5674327347589).

31132120311131 is a wasteful number, since it uses less digits than its factorization.

31132120311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153360198613.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 31132120311131 its reverse (13111302123113), we get a palindrome (44243422434244).

The spelling of 31132120311131 in words is "thirty-one trillion, one hundred thirty-two billion, one hundred twenty million, three hundred eleven thousand, one hundred thirty-one".