202130223123 has 8 divisors (see below), whose sum is σ = 269518467328. Its totient is φ = 134747730504.

The previous prime is 202130223107. The next prime is 202130223137. The reversal of 202130223123 is 321322031202.

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 202130223123 - 2⁴ = 202130223107 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 202130223123.

It is not an unprimeable number, because it can be changed into a prime (202130223103) 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, 1355215 + ... + 1496952.

It is an arithmetic number, because the mean of its divisors is an integer number (33689808416).

Almost surely, 2^202130223123 is an apocalyptic number.

202130223123 is a deficient number, since it is larger than the sum of its proper divisors (67388244205).

202130223123 is a wasteful number, since it uses less digits than its factorization.

202130223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875793.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 202130223123 its reverse (321322031202), we get a palindrome (523452254325).

The spelling of 202130223123 in words is "two hundred two billion, one hundred thirty million, two hundred twenty-three thousand, one hundred twenty-three".