31123233103211 has 8 divisors (see below), whose sum is σ = 32785263866880. Its totient is φ = 29463598925928.

The previous prime is 31123233103189. The next prime is 31123233103219. The reversal of 31123233103211 is 11230133232113.

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 31123233103211 - 2¹⁸ = 31123232841067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31123233103219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599119931 + ... + 599171876.

It is an arithmetic number, because the mean of its divisors is an integer number (4098157983360).

Almost surely, 2^{31123233103211} is an apocalyptic number.

31123233103211 is a deficient number, since it is larger than the sum of its proper divisors (1662030763669).

31123233103211 is a wasteful number, since it uses less digits than its factorization.

31123233103211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198293193.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31123233103211 its reverse (11230133232113), we get a palindrome (42353366335324).

The spelling of 31123233103211 in words is "thirty-one trillion, one hundred twenty-three billion, two hundred thirty-three million, one hundred three thousand, two hundred eleven".