31140534041345 has 8 divisors (see below), whose sum is σ = 37641404652264. Its totient is φ = 24730584697984.

The previous prime is 31140534041329. The next prime is 31140534041347. The reversal of 31140534041345 is 54314043504113.

It can be written as a sum of positive squares in 4 ways, for example, as 4895722666384 + 26244811374961 = 2212628^2 + 5122969^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 31140534041345 - 2⁴ = 31140534041329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31140534041299 and 31140534041308.

It is not an unprimeable number, because it can be changed into a prime (31140534041347) 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, 22730316134 + ... + 22730317503.

It is an arithmetic number, because the mean of its divisors is an integer number (4705175581533).

Almost surely, 2^{31140534041345} is an apocalyptic number.

It is an amenable number.

31140534041345 is a deficient number, since it is larger than the sum of its proper divisors (6500870610919).

31140534041345 is a wasteful number, since it uses less digits than its factorization.

31140534041345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45460633779.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 31140534041345 its reverse (54314043504113), we get a palindrome (85454577545458).

The spelling of 31140534041345 in words is "thirty-one trillion, one hundred forty billion, five hundred thirty-four million, forty-one thousand, three hundred forty-five".