30520450045131 has 4 divisors (see below), whose sum is σ = 40693933393512. Its totient is φ = 20346966696752.

The previous prime is 30520450045097. The next prime is 30520450045231. The reversal of 30520450045131 is 13154005402503.

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

It is a cyclic number.

It is not a de Polignac number, because 30520450045131 - 2⁹ = 30520450044619 is a prime.

It is a super-2 number, since 2×30520450045131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30520450045092 and 30520450045101.

It is not an unprimeable number, because it can be changed into a prime (30520450045231) 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, 5086741674186 + ... + 5086741674191.

It is an arithmetic number, because the mean of its divisors is an integer number (10173483348378).

Almost surely, 2^{30520450045131} is an apocalyptic number.

30520450045131 is a deficient number, since it is larger than the sum of its proper divisors (10173483348381).

30520450045131 is a wasteful number, since it uses less digits than its factorization.

30520450045131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10173483348380.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 30520450045131 its reverse (13154005402503), we get a palindrome (43674455447634).

The spelling of 30520450045131 in words is "thirty trillion, five hundred twenty billion, four hundred fifty million, forty-five thousand, one hundred thirty-one".