202130402123 has 16 divisors (see below), whose sum is σ = 229166085120. Its totient is φ = 176738353056.

The previous prime is 202130402107. The next prime is 202130402141. The reversal of 202130402123 is 321204031202.

It is a cyclic number.

It is not a de Polignac number, because 202130402123 - 2⁴ = 202130402107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202130402095 and 202130402104.

It is not an unprimeable number, because it can be changed into a prime (202130402323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1962086 + ... + 2062532.

It is an arithmetic number, because the mean of its divisors is an integer number (14322880320).

Almost surely, 2^202130402123 is an apocalyptic number.

202130402123 is a deficient number, since it is larger than the sum of its proper divisors (27035682997).

202130402123 is a wasteful number, since it uses less digits than its factorization.

202130402123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108626.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 202130402123 its reverse (321204031202), we get a palindrome (523334433325).

The spelling of 202130402123 in words is "two hundred two billion, one hundred thirty million, four hundred two thousand, one hundred twenty-three".