31245423542 has 8 divisors (see below), whose sum is σ = 48484278000. Its totient is φ = 15083997544.

The previous prime is 31245423533. The next prime is 31245423557. The reversal of 31245423542 is 24532454213.

It is a happy number.

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

It is a congruent number.

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, 269357042 + ... + 269357157.

It is an arithmetic number, because the mean of its divisors is an integer number (6060534750).

Almost surely, 2^31245423542 is an apocalyptic number.

31245423542 is a deficient number, since it is larger than the sum of its proper divisors (17238854458).

31245423542 is a wasteful number, since it uses less digits than its factorization.

31245423542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538714230.

The product of its digits is 115200, while the sum is 35.

Adding to 31245423542 its reverse (24532454213), we get a palindrome (55777877755).

The spelling of 31245423542 in words is "thirty-one billion, two hundred forty-five million, four hundred twenty-three thousand, five hundred forty-two".