20123210120002 has 16 divisors (see below), whose sum is σ = 32930489061792. Its totient is φ = 9146469309120.

The previous prime is 20123210119981. The next prime is 20123210120009. The reversal of 20123210120002 is 20002101232102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20123210120009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21755748 + ... + 22661839.

It is an arithmetic number, because the mean of its divisors is an integer number (2058155566362).

Almost surely, 2^{20123210120002} is an apocalyptic number.

20123210120002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20123210120002 is a deficient number, since it is larger than the sum of its proper divisors (12807278941790).

20123210120002 is a wasteful number, since it uses less digits than its factorization.

20123210120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44438193.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20123210120002 its reverse (20002101232102), we get a palindrome (40125311352104).

The spelling of 20123210120002 in words is "twenty trillion, one hundred twenty-three billion, two hundred ten million, one hundred twenty thousand, two".