20210102120003 has 4 divisors (see below), whose sum is σ = 20216280693168. Its totient is φ = 20203923546840.

The previous prime is 20210102119913. The next prime is 20210102120009. The reversal of 20210102120003 is 30002120101202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20210102120003 - 2¹⁰ = 20210102118979 is a prime.

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 20210102120003.

It is not an unprimeable number, because it can be changed into a prime (20210102120009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3089281676 + ... + 3089288217.

It is an arithmetic number, because the mean of its divisors is an integer number (5054070173292).

Almost surely, 2^{20210102120003} is an apocalyptic number.

20210102120003 is a deficient number, since it is larger than the sum of its proper divisors (6178573165).

20210102120003 is an equidigital number, since it uses as much as digits as its factorization.

20210102120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6178573164.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20210102120003 its reverse (30002120101202), we get a palindrome (50212222221205).

The spelling of 20210102120003 in words is "twenty trillion, two hundred ten billion, one hundred two million, one hundred twenty thousand, three".