13123211220030 has 64 divisors (see below), whose sum is σ = 33154416172800. Its totient is φ = 3315233525760.

The previous prime is 13123211220017. The next prime is 13123211220061. The reversal of 13123211220030 is 3002211232131.

It is a junction number, because it is equal to n+sod(n) for n = 13123211219979 and 13123211220006.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 18698565 + ... + 19387695.

It is an arithmetic number, because the mean of its divisors is an integer number (518037752700).

Almost surely, 2^{13123211220030} is an apocalyptic number.

13123211220030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13123211220030 is an abundant number, since it is smaller than the sum of its proper divisors (20031204952770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123211220030 is a wasteful number, since it uses less digits than its factorization.

13123211220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722569.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13123211220030 its reverse (3002211232131), we get a palindrome (16125422452161).

The spelling of 13123211220030 in words is "thirteen trillion, one hundred twenty-three billion, two hundred eleven million, two hundred twenty thousand, thirty".