30202440231 has 16 divisors (see below), whose sum is σ = 41105806560. Its totient is φ = 19719851520.

The previous prime is 30202440181. The next prime is 30202440259. The reversal of 30202440231 is 13204420203.

It is not a de Polignac number, because 30202440231 - 2¹¹ = 30202438183 is a prime.

It is a super-2 number, since 2×30202440231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30202440198 and 30202440207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202440131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311526 + ... + 396803.

It is an arithmetic number, because the mean of its divisors is an integer number (2569112910).

Almost surely, 2^30202440231 is an apocalyptic number.

30202440231 is a deficient number, since it is larger than the sum of its proper divisors (10903366329).

30202440231 is a wasteful number, since it uses less digits than its factorization.

30202440231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708626.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 30202440231 its reverse (13204420203), we get a palindrome (43406860434).

The spelling of 30202440231 in words is "thirty billion, two hundred two million, four hundred forty thousand, two hundred thirty-one".