231242022430 has 16 divisors (see below), whose sum is σ = 427485252960. Its totient is φ = 89996895072.

The previous prime is 231242022377. The next prime is 231242022433. The reversal of 231242022430 is 34220242132.

It is a junction number, because it is equal to n+sod(n) for n = 231242022395 and 231242022404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231242022433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312488850 + ... + 312489589.

It is an arithmetic number, because the mean of its divisors is an integer number (26717828310).

Almost surely, 2^231242022430 is an apocalyptic number.

231242022430 is a deficient number, since it is larger than the sum of its proper divisors (196243230530).

231242022430 is a wasteful number, since it uses less digits than its factorization.

231242022430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624978483.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 231242022430 its reverse (34220242132), we get a palindrome (265462264562).

The spelling of 231242022430 in words is "two hundred thirty-one billion, two hundred forty-two million, twenty-two thousand, four hundred thirty".