31203122331223 has 8 divisors (see below), whose sum is σ = 31282918848000. Its totient is φ = 31123394876280.

The previous prime is 31203122331217. The next prime is 31203122331373. The reversal of 31203122331223 is 32213322130213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31203122331223 - 2⁹ = 31203122330711 is a prime.

It is a super-2 number, since 2×31203122331223² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31203122331191 and 31203122331200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31203122331523) 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, 16360615 + ... + 18167992.

It is an arithmetic number, because the mean of its divisors is an integer number (3910364856000).

Almost surely, 2^{31203122331223} is an apocalyptic number.

31203122331223 is a deficient number, since it is larger than the sum of its proper divisors (79796516777).

31203122331223 is a wasteful number, since it uses less digits than its factorization.

31203122331223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34530917.

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

Adding to 31203122331223 its reverse (32213322130213), we get a palindrome (63416444461436).

The spelling of 31203122331223 in words is "thirty-one trillion, two hundred three billion, one hundred twenty-two million, three hundred thirty-one thousand, two hundred twenty-three".