10202120200123 has 8 divisors (see below), whose sum is σ = 10451712660480. Its totient is φ = 9952563942720.

The previous prime is 10202120200099. The next prime is 10202120200147. The reversal of 10202120200123 is 32100202120201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10202120200099) and next prime (10202120200147).

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 10202120200123 - 2¹³ = 10202120191931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202120200097 and 10202120200106.

It is not an unprimeable number, because it can be changed into a prime (10202120200423) 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, 8479803 + ... + 9607876.

It is an arithmetic number, because the mean of its divisors is an integer number (1306464082560).

Almost surely, 2^{10202120200123} is an apocalyptic number.

10202120200123 is a deficient number, since it is larger than the sum of its proper divisors (249592460357).

10202120200123 is a wasteful number, since it uses less digits than its factorization.

10202120200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18101477.

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

Adding to 10202120200123 its reverse (32100202120201), we get a palindrome (42302322320324).

The spelling of 10202120200123 in words is "ten trillion, two hundred two billion, one hundred twenty million, two hundred thousand, one hundred twenty-three".