210020020000123 has 8 divisors (see below), whose sum is σ = 214356121669440. Its totient is φ = 205712729638080.

The previous prime is 210020020000069. The next prime is 210020020000139. The reversal of 210020020000123 is 321000020020012.

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 210020020000123 - 2²¹ = 210020017902971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210020020000723) 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, 7202812090 + ... + 7202841247.

It is an arithmetic number, because the mean of its divisors is an integer number (26794515208680).

Almost surely, 2^{210020020000123} is an apocalyptic number.

210020020000123 is a deficient number, since it is larger than the sum of its proper divisors (4336101669317).

210020020000123 is a wasteful number, since it uses less digits than its factorization.

210020020000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14405653637.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 210020020000123 its reverse (321000020020012), we get a palindrome (531020040020135).

The spelling of 210020020000123 in words is "two hundred ten trillion, twenty billion, twenty million, one hundred twenty-three", and thus it is an aban number.