13123031011222 has 32 divisors (see below), whose sum is σ = 21497626934784. Its totient is φ = 5958466836000.

The previous prime is 13123031011121. The next prime is 13123031011247. The reversal of 13123031011222 is 22211013032131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13123031011193 and 13123031011202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173770323 + ... + 173845825.

It is an arithmetic number, because the mean of its divisors is an integer number (671800841712).

Almost surely, 2^{13123031011222} is an apocalyptic number.

13123031011222 is a deficient number, since it is larger than the sum of its proper divisors (8374595923562).

13123031011222 is a wasteful number, since it uses less digits than its factorization.

13123031011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84084.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13123031011222 its reverse (22211013032131), we get a palindrome (35334044043353).

The spelling of 13123031011222 in words is "thirteen trillion, one hundred twenty-three billion, thirty-one million, eleven thousand, two hundred twenty-two".