31223432542235 has 8 divisors (see below), whose sum is σ = 37472058558816. Its totient is φ = 24976119695040.

The previous prime is 31223432542231. The next prime is 31223432542259. The reversal of 31223432542235 is 53224523432213.

It is a happy number.

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

It is not a de Polignac number, because 31223432542235 - 2² = 31223432542231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31223432542192 and 31223432542201.

It is not an unprimeable number, because it can be changed into a prime (31223432542231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328240034 + ... + 328335143.

It is an arithmetic number, because the mean of its divisors is an integer number (4684007319852).

Almost surely, 2^{31223432542235} is an apocalyptic number.

31223432542235 is a deficient number, since it is larger than the sum of its proper divisors (6248626016581).

31223432542235 is an equidigital number, since it uses as much as digits as its factorization.

31223432542235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656584693.

The product of its digits is 1036800, while the sum is 41.

Adding to 31223432542235 its reverse (53224523432213), we get a palindrome (84447955974448).

The spelling of 31223432542235 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred thirty-two million, five hundred forty-two thousand, two hundred thirty-five".