30515314133 has 4 divisors (see below), whose sum is σ = 30545202828. Its totient is φ = 30485425440.

The previous prime is 30515314129. The next prime is 30515314139. The reversal of 30515314133 is 33141351503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33141351503 = 13 ⋅2549334731.

It can be written as a sum of positive squares in 2 ways, for example, as 7447172209 + 23068141924 = 86297^2 + 151882^2 .

It is a cyclic number.

It is not a de Polignac number, because 30515314133 - 2² = 30515314129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30515314096 and 30515314105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30515314139) 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, 14942816 + ... + 14944857.

It is an arithmetic number, because the mean of its divisors is an integer number (7636300707).

Almost surely, 2^30515314133 is an apocalyptic number.

It is an amenable number.

30515314133 is a deficient number, since it is larger than the sum of its proper divisors (29888695).

30515314133 is a wasteful number, since it uses less digits than its factorization.

30515314133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29888694.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 30515314133 its reverse (33141351503), we get a palindrome (63656665636).

The spelling of 30515314133 in words is "thirty billion, five hundred fifteen million, three hundred fourteen thousand, one hundred thirty-three".