31233043042 has 8 divisors (see below), whose sum is σ = 49605421356. Its totient is φ = 14697902592.

The previous prime is 31233043031. The next prime is 31233043073. The reversal of 31233043042 is 24034033213.

It can be written as a sum of positive squares in 2 ways, for example, as 31098969801 + 134073241 = 176349^2 + 11579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31233043042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31233042998 and 31233043016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459309423 + ... + 459309490.

Almost surely, 2^31233043042 is an apocalyptic number.

31233043042 is a deficient number, since it is larger than the sum of its proper divisors (18372378314).

31233043042 is a wasteful number, since it uses less digits than its factorization.

31233043042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918618932.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 31233043042 its reverse (24034033213), we get a palindrome (55267076255).

The spelling of 31233043042 in words is "thirty-one billion, two hundred thirty-three million, forty-three thousand, forty-two".