20202413211240 has 256 divisors, whose sum is σ = 70794289681920. Its totient is φ = 4566222274560.

The previous prime is 20202413211179. The next prime is 20202413211241. The reversal of 20202413211240 is 4211231420202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20202413211240.

It is not an unprimeable number, because it can be changed into a prime (20202413211241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8202684 + ... + 10377323.

It is an arithmetic number, because the mean of its divisors is an integer number (276540194070).

Almost surely, 2^{20202413211240} is an apocalyptic number.

20202413211240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202413211240 is an abundant number, since it is smaller than the sum of its proper divisors (50591876470680).

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

20202413211240 is a wasteful number, since it uses less digits than its factorization.

20202413211240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18580092 (or 18580088 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20202413211240 its reverse (4211231420202), we get a palindrome (24413644631442).

The spelling of 20202413211240 in words is "twenty trillion, two hundred two billion, four hundred thirteen million, two hundred eleven thousand, two hundred forty".