30631243365053 has 4 divisors (see below), whose sum is σ = 30765004253340. Its totient is φ = 30497482476768.

The previous prime is 30631243364993. The next prime is 30631243365071. The reversal of 30631243365053 is 35056334213603.

It is a happy number.

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 28106570242969 + 2524673122084 = 5301563^2 + 1588922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30631243365053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30631243364995 and 30631243365013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30631243065053) 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, 66880443800 + ... + 66880444257.

It is an arithmetic number, because the mean of its divisors is an integer number (7691251063335).

Almost surely, 2^{30631243365053} is an apocalyptic number.

It is an amenable number.

30631243365053 is a deficient number, since it is larger than the sum of its proper divisors (133760888287).

30631243365053 is a wasteful number, since it uses less digits than its factorization.

30631243365053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133760888286.

The product of its (nonzero) digits is 1749600, while the sum is 44.

Adding to 30631243365053 its reverse (35056334213603), we get a palindrome (65687577578656).

The spelling of 30631243365053 in words is "thirty trillion, six hundred thirty-one billion, two hundred forty-three million, three hundred sixty-five thousand, fifty-three".