213002202123 has 16 divisors (see below), whose sum is σ = 332167177600. Its totient is φ = 134527706280.

The previous prime is 213002202113. The next prime is 213002202137. The reversal of 213002202123 is 321202200312.

213002202123 is a `hidden beast` number, since 21 + 300 + 220 + 2 + 123 = 666.

It is not a de Polignac number, because 213002202123 - 2⁶ = 213002202059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213002202096 and 213002202105.

It is not an unprimeable number, because it can be changed into a prime (213002202103) 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, 207603973 + ... + 207604998.

It is an arithmetic number, because the mean of its divisors is an integer number (20760448600).

Almost surely, 2^213002202123 is an apocalyptic number.

213002202123 is a deficient number, since it is larger than the sum of its proper divisors (119164975477).

213002202123 is a wasteful number, since it uses less digits than its factorization.

213002202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415208999 (or 415208993 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 213002202123 its reverse (321202200312), we get a palindrome (534204402435).

The spelling of 213002202123 in words is "two hundred thirteen billion, two million, two hundred two thousand, one hundred twenty-three".