31442230532 has 24 divisors (see below), whose sum is σ = 55175105664. Its totient is φ = 15677975552.

The previous prime is 31442230529. The next prime is 31442230553. The reversal of 31442230532 is 23503224413.

It is a happy number.

It is a super-2 number, since 2×31442230532² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31442230495 and 31442230504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2288708 + ... + 2302404.

It is an arithmetic number, because the mean of its divisors is an integer number (2298962736).

Almost surely, 2^31442230532 is an apocalyptic number.

It is an amenable number.

31442230532 is a deficient number, since it is larger than the sum of its proper divisors (23732875132).

31442230532 is a wasteful number, since it uses less digits than its factorization.

31442230532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15235 (or 15233 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 31442230532 its reverse (23503224413), we get a palindrome (54945454945).

The spelling of 31442230532 in words is "thirty-one billion, four hundred forty-two million, two hundred thirty thousand, five hundred thirty-two".