230311220442 has 64 divisors (see below), whose sum is σ = 475713638400. Its totient is φ = 74291515200.

The previous prime is 230311220431. The next prime is 230311220449. The reversal of 230311220442 is 244022113032.

It is a happy number.

It is a super-2 number, since 2×230311220442² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230311220449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12646059 + ... + 12664257.

It is an arithmetic number, because the mean of its divisors is an integer number (7433025600).

Almost surely, 2^230311220442 is an apocalyptic number.

230311220442 is an abundant number, since it is smaller than the sum of its proper divisors (245402417958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230311220442 is a wasteful number, since it uses less digits than its factorization.

230311220442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18699.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 230311220442 its reverse (244022113032), we get a palindrome (474333333474).

The spelling of 230311220442 in words is "two hundred thirty billion, three hundred eleven million, two hundred twenty thousand, four hundred forty-two".