30071516131 has 4 divisors (see below), whose sum is σ = 30094596112. Its totient is φ = 30048436152.

The previous prime is 30071516107. The next prime is 30071516183. The reversal of 30071516131 is 13161517003.

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 30071516131 - 2⁹ = 30071515619 is a prime.

It is a super-2 number, since 2×30071516131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30071516131.

It is not an unprimeable number, because it can be changed into a prime (30071516231) 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, 11538036 + ... + 11540641.

It is an arithmetic number, because the mean of its divisors is an integer number (7523649028).

Almost surely, 2^30071516131 is an apocalyptic number.

30071516131 is a deficient number, since it is larger than the sum of its proper divisors (23079981).

30071516131 is a wasteful number, since it uses less digits than its factorization.

30071516131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23079980.

The product of its (nonzero) digits is 1890, while the sum is 28.

The spelling of 30071516131 in words is "thirty billion, seventy-one million, five hundred sixteen thousand, one hundred thirty-one".