31442132230 has 64 divisors (see below), whose sum is σ = 62205511680. Its totient is φ = 11390860800.

The previous prime is 31442132207. The next prime is 31442132233. The reversal of 31442132230 is 3223124413.

It is a junction number, because it is equal to n+sod(n) for n = 31442132195 and 31442132204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31442132233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 926665 + ... + 959995.

It is an arithmetic number, because the mean of its divisors is an integer number (971961120).

Almost surely, 2^31442132230 is an apocalyptic number.

31442132230 is a deficient number, since it is larger than the sum of its proper divisors (30763379450).

31442132230 is a wasteful number, since it uses less digits than its factorization.

31442132230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33565.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31442132230 its reverse (3223124413), we get a palindrome (34665256643).

The spelling of 31442132230 in words is "thirty-one billion, four hundred forty-two million, one hundred thirty-two thousand, two hundred thirty".