202123012330 has 16 divisors (see below), whose sum is σ = 363870332640. Its totient is φ = 80838335952.

The previous prime is 202123012327. The next prime is 202123012369. The reversal of 202123012330 is 33210321202.

It is a super-2 number, since 2×202123012330² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202123012298 and 202123012307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280304 + ... + 1429483.

It is an arithmetic number, because the mean of its divisors is an integer number (22741895790).

Almost surely, 2^202123012330 is an apocalyptic number.

202123012330 is a deficient number, since it is larger than the sum of its proper divisors (161747320310).

202123012330 is a wasteful number, since it uses less digits than its factorization.

202123012330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717253.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 202123012330 its reverse (33210321202), we get a palindrome (235333333532).

The spelling of 202123012330 in words is "two hundred two billion, one hundred twenty-three million, twelve thousand, three hundred thirty".