30131302018 has 8 divisors (see below), whose sum is σ = 46418492412. Its totient is φ = 14658471216.

The previous prime is 30131302001. The next prime is 30131302021. The reversal of 30131302018 is 81020313103.

It can be written as a sum of positive squares in 2 ways, for example, as 27930097129 + 2201204889 = 167123^2 + 46917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30131302018² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30131302018.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203589805 + ... + 203589952.

Almost surely, 2^30131302018 is an apocalyptic number.

30131302018 is a deficient number, since it is larger than the sum of its proper divisors (16287190394).

30131302018 is a wasteful number, since it uses less digits than its factorization.

30131302018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407179796.

The product of its (nonzero) digits is 432, while the sum is 22.

It can be divided in two parts, 3013 and 1302018, that added together give a palindrome (1305031).

The spelling of 30131302018 in words is "thirty billion, one hundred thirty-one million, three hundred two thousand, eighteen".