202111240156 has 24 divisors (see below), whose sum is σ = 405513943520. Its totient is φ = 86342360832.

The previous prime is 202111240147. The next prime is 202111240171. The reversal of 202111240156 is 651042111202.

It is a self number, because there is not a number n which added to its sum of digits gives 202111240156.

It is a congruent number.

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, 11522001 + ... + 11539528.

Almost surely, 2^202111240156 is an apocalyptic number.

It is an amenable number.

202111240156 is an abundant number, since it is smaller than the sum of its proper divisors (203402703364).

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

202111240156 is a wasteful number, since it uses less digits than its factorization.

202111240156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23061853 (or 23061851 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 202111240156 its reverse (651042111202), we get a palindrome (853153351358).

The spelling of 202111240156 in words is "two hundred two billion, one hundred eleven million, two hundred forty thousand, one hundred fifty-six".