31133204223 has 16 divisors (see below), whose sum is σ = 45288667776. Its totient is φ = 18866939040.

The previous prime is 31133204197. The next prime is 31133204237. The reversal of 31133204223 is 32240233113.

It is not a de Polignac number, because 31133204223 - 2⁸ = 31133203967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31133204193 and 31133204202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31133204273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409740 + ... + 479742.

It is an arithmetic number, because the mean of its divisors is an integer number (2830541736).

Almost surely, 2^31133204223 is an apocalyptic number.

31133204223 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31133204223 is a deficient number, since it is larger than the sum of its proper divisors (14155463553).

31133204223 is a wasteful number, since it uses less digits than its factorization.

31133204223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83494.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31133204223 its reverse (32240233113), we get a palindrome (63373437336).

The spelling of 31133204223 in words is "thirty-one billion, one hundred thirty-three million, two hundred four thousand, two hundred twenty-three".