10202020002123 has 8 divisors (see below), whose sum is σ = 13825688309136. Its totient is φ = 6689849181600.

The previous prime is 10202020002089. The next prime is 10202020002137. The reversal of 10202020002123 is 32120002020201.

It is a happy number.

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

It is not a de Polignac number, because 10202020002123 - 2⁸ = 10202020001867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10202020002143) 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, 27874371408 + ... + 27874371773.

It is an arithmetic number, because the mean of its divisors is an integer number (1728211038642).

Almost surely, 2^{10202020002123} is an apocalyptic number.

10202020002123 is a deficient number, since it is larger than the sum of its proper divisors (3623668307013).

10202020002123 is an equidigital number, since it uses as much as digits as its factorization.

10202020002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55748743245.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10202020002123 its reverse (32120002020201), we get a palindrome (42322022022324).

The spelling of 10202020002123 in words is "ten trillion, two hundred two billion, twenty million, two thousand, one hundred twenty-three".