22431434142 has 64 divisors (see below), whose sum is σ = 51652823040. Its totient is φ = 6432873984.

The previous prime is 22431434111. The next prime is 22431434173. The reversal of 22431434142 is 24143413422.

It is an interprime number because it is at equal distance from previous prime (22431434111) and next prime (22431434173).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54459 + ... + 218697.

It is an arithmetic number, because the mean of its divisors is an integer number (807075360).

Almost surely, 2^22431434142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22431434142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25826411520).

22431434142 is an abundant number, since it is smaller than the sum of its proper divisors (29221388898).

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

22431434142 is a wasteful number, since it uses less digits than its factorization.

22431434142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164377.

The product of its digits is 18432, while the sum is 30.

Adding to 22431434142 its reverse (24143413422), we get a palindrome (46574847564).

The spelling of 22431434142 in words is "twenty-two billion, four hundred thirty-one million, four hundred thirty-four thousand, one hundred forty-two".