202323122040 has 512 divisors, whose sum is σ = 724860057600. Its totient is φ = 44670320640.

The previous prime is 202323122021. The next prime is 202323122051. The reversal of 202323122040 is 40221323202.

It is a junction number, because it is equal to n+sod(n) for n = 202323121998 and 202323122016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 249473235 + ... + 249474045.

It is an arithmetic number, because the mean of its divisors is an integer number (1415742300).

Almost surely, 2^202323122040 is an apocalyptic number.

202323122040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202323122040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362430028800).

202323122040 is an abundant number, since it is smaller than the sum of its proper divisors (522536935560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202323122040 is a wasteful number, since it uses less digits than its factorization.

202323122040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 202323122040 its reverse (40221323202), we get a palindrome (242544445242).

The spelling of 202323122040 in words is "two hundred two billion, three hundred twenty-three million, one hundred twenty-two thousand, forty".