202123323011 has 8 divisors (see below), whose sum is σ = 209140245120. Its totient is φ = 195109544448.

The previous prime is 202123323007. The next prime is 202123323013. The reversal of 202123323011 is 110323321202.

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 202123323011 - 2² = 202123323007 is a prime.

It is a super-2 number, since 2×202123323011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202123323013) 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, 654686 + ... + 912611.

It is an arithmetic number, because the mean of its divisors is an integer number (26142530640).

Almost surely, 2^202123323011 is an apocalyptic number.

202123323011 is a deficient number, since it is larger than the sum of its proper divisors (7016922109).

202123323011 is a wasteful number, since it uses less digits than its factorization.

202123323011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571773.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 202123323011 its reverse (110323321202), we get a palindrome (312446644213).

The spelling of 202123323011 in words is "two hundred two billion, one hundred twenty-three million, three hundred twenty-three thousand, eleven".