202113120003123 has 8 divisors (see below), whose sum is σ = 307981897147648. Its totient is φ = 115493211430344.

The previous prime is 202113120003107. The next prime is 202113120003143. The reversal of 202113120003123 is 321300021311202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202113120003123 - 2⁴ = 202113120003107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 9624434285863 = 202113120003123 / (2 + 0 + 2 + 1 + 1 + 3 + 1 + 2 + 0 + 0 + 0 + 3 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202113120003123.

It is not an unprimeable number, because it can be changed into a prime (202113120003143) 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, 4812217142911 + ... + 4812217142952.

It is an arithmetic number, because the mean of its divisors is an integer number (38497737143456).

Almost surely, 2^{202113120003123} is an apocalyptic number.

202113120003123 is a deficient number, since it is larger than the sum of its proper divisors (105868777144525).

202113120003123 is an equidigital number, since it uses as much as digits as its factorization.

202113120003123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624434285873.

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

Adding to 202113120003123 its reverse (321300021311202), we get a palindrome (523413141314325).

The spelling of 202113120003123 in words is "two hundred two trillion, one hundred thirteen billion, one hundred twenty million, three thousand, one hundred twenty-three".