31311330101223 has 32 divisors (see below), whose sum is σ = 42576057216000. Its totient is φ = 20464068172800.

The previous prime is 31311330101209. The next prime is 31311330101237. The reversal of 31311330101223 is 32210103311313.

It is an interprime number because it is at equal distance from previous prime (31311330101209) and next prime (31311330101237).

It is not a de Polignac number, because 31311330101223 - 2¹² = 31311330097127 is a prime.

It is a super-3 number, since 3×31311330101223³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31311330101193 and 31311330101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311330101123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26100343 + ... + 27273623.

It is an arithmetic number, because the mean of its divisors is an integer number (1330501788000).

Almost surely, 2^{31311330101223} is an apocalyptic number.

31311330101223 is a deficient number, since it is larger than the sum of its proper divisors (11264727114777).

31311330101223 is a wasteful number, since it uses less digits than its factorization.

31311330101223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174063.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31311330101223 its reverse (32210103311313), we get a palindrome (63521433412536).

The spelling of 31311330101223 in words is "thirty-one trillion, three hundred eleven billion, three hundred thirty million, one hundred one thousand, two hundred twenty-three".