830618540231 has 4 divisors (see below), whose sum is σ = 831254056872. Its totient is φ = 829983023592.

The previous prime is 830618540207. The next prime is 830618540239. The reversal of 830618540231 is 132045816038.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-830618540231 is a prime.

It is a super-2 number, since 2×830618540231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830618540239) 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, 317756360 + ... + 317758973.

It is an arithmetic number, because the mean of its divisors is an integer number (207813514218).

Almost surely, 2^830618540231 is an apocalyptic number.

830618540231 is a deficient number, since it is larger than the sum of its proper divisors (635516641).

830618540231 is a wasteful number, since it uses less digits than its factorization.

830618540231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635516640.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 830618540231 in words is "eight hundred thirty billion, six hundred eighteen million, five hundred forty thousand, two hundred thirty-one".