31440413342033 has 4 divisors (see below), whose sum is σ = 31651422827700. Its totient is φ = 31229403856368.

The previous prime is 31440413341979. The next prime is 31440413342153. The reversal of 31440413342033 is 33024331404413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4485449580544 + 26954963761489 = 2117888^2 + 5191817^2 .

It is a cyclic number.

It is not a de Polignac number, because 31440413342033 - 2³⁴ = 31423233472849 is a prime.

It is a super-2 number, since 2×31440413342033² (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 = 31440413341984 and 31440413342002.

It is not an unprimeable number, because it can be changed into a prime (31440413942033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105504742610 + ... + 105504742907.

It is an arithmetic number, because the mean of its divisors is an integer number (7912855706925).

Almost surely, 2^{31440413342033} is an apocalyptic number.

It is an amenable number.

31440413342033 is a deficient number, since it is larger than the sum of its proper divisors (211009485667).

31440413342033 is a wasteful number, since it uses less digits than its factorization.

31440413342033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211009485666.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 31440413342033 its reverse (33024331404413), we get a palindrome (64464744746446).

The spelling of 31440413342033 in words is "thirty-one trillion, four hundred forty billion, four hundred thirteen million, three hundred forty-two thousand, thirty-three".