211103402024420 has 24 divisors (see below), whose sum is σ = 443323517314104. Its totient is φ = 84440146893056.

The previous prime is 211103402024393. The next prime is 211103402024429. The reversal of 211103402024420 is 24420204301112.

It can be written as a sum of positive squares in 4 ways, for example, as 32097572982784 + 179005829041636 = 5665472^2 + 13379306^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 211103402024420.

It is not an unprimeable number, because it can be changed into a prime (211103402024429) 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, 74443139 + ... + 77226858.

It is an arithmetic number, because the mean of its divisors is an integer number (18471813221421).

Almost surely, 2^{211103402024420} is an apocalyptic number.

211103402024420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211103402024420 is an abundant number, since it is smaller than the sum of its proper divisors (232220115289684).

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

211103402024420 is a wasteful number, since it uses less digits than its factorization.

211103402024420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151739599 (or 151739597 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 211103402024420 its reverse (24420204301112), we get a palindrome (235523606325532).

The spelling of 211103402024420 in words is "two hundred eleven trillion, one hundred three billion, four hundred two million, twenty-four thousand, four hundred twenty".