31012132233223 has 4 divisors (see below), whose sum is σ = 31768525702368. Its totient is φ = 30255738764080.

The previous prime is 31012132233179. The next prime is 31012132233227. The reversal of 31012132233223 is 32233223121013.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31012132233223 - 2⁴¹ = 28813108977671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31012132233191 and 31012132233200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012132233227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378196734511 + ... + 378196734592.

It is an arithmetic number, because the mean of its divisors is an integer number (7942131425592).

Almost surely, 2^{31012132233223} is an apocalyptic number.

31012132233223 is a deficient number, since it is larger than the sum of its proper divisors (756393469145).

31012132233223 is an equidigital number, since it uses as much as digits as its factorization.

31012132233223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756393469144.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 31012132233223 its reverse (32233223121013), we get a palindrome (63245355354236).

The spelling of 31012132233223 in words is "thirty-one trillion, twelve billion, one hundred thirty-two million, two hundred thirty-three thousand, two hundred twenty-three".