31132031133031 has 2 divisors, whose sum is σ = 31132031133032. Its totient is φ = 31132031133030.

The previous prime is 31132031133029. The next prime is 31132031133121. The reversal of 31132031133031 is 13033113023113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31132031133031 - 2¹ = 31132031133029 is a prime.

It is a super-2 number, since 2×31132031133031² (a number of 28 digits) contains 22 as substring.

Together with 31132031133029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 31132031132987 and 31132031133005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31132031133431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566015566515 + 15566015566516.

It is an arithmetic number, because the mean of its divisors is an integer number (15566015566516).

Almost surely, 2^{31132031133031} is an apocalyptic number.

31132031133031 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132031133031 is an equidigital number, since it uses as much as digits as its factorization.

31132031133031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 31132031133031 its reverse (13033113023113), we get a palindrome (44165144156144).

The spelling of 31132031133031 in words is "thirty-one trillion, one hundred thirty-two billion, thirty-one million, one hundred thirty-three thousand, thirty-one".