202133211231 has 32 divisors (see below), whose sum is σ = 318352253440. Its totient is φ = 111667061376.

The previous prime is 202133211211. The next prime is 202133211233. The reversal of 202133211231 is 132112331202.

It is not a de Polignac number, because 202133211231 - 2⁷ = 202133211103 is a prime.

It is a super-2 number, since 2×202133211231² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202133211198 and 202133211207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202133211233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 706501 + ... + 950478.

It is an arithmetic number, because the mean of its divisors is an integer number (9948507920).

Almost surely, 2^202133211231 is an apocalyptic number.

202133211231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

202133211231 is a deficient number, since it is larger than the sum of its proper divisors (116219042209).

202133211231 is a wasteful number, since it uses less digits than its factorization.

202133211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657183.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 202133211231 its reverse (132112331202), we get a palindrome (334245542433).

The spelling of 202133211231 in words is "two hundred two billion, one hundred thirty-three million, two hundred eleven thousand, two hundred thirty-one".