211130000420 has 12 divisors (see below), whose sum is σ = 443373000924. Its totient is φ = 84452000160.

The previous prime is 211130000381. The next prime is 211130000423. The reversal of 211130000420 is 24000031112.

It can be written as a sum of positive squares in 2 ways, for example, as 147800264704 + 63329735716 = 384448^2 + 251654^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211130000395 and 211130000404.

It is not an unprimeable number, because it can be changed into a prime (211130000423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5278249991 + ... + 5278250030.

It is an arithmetic number, because the mean of its divisors is an integer number (36947750077).

Almost surely, 2^211130000420 is an apocalyptic number.

211130000420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211130000420 is an abundant number, since it is smaller than the sum of its proper divisors (232243000504).

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

211130000420 is a wasteful number, since it uses less digits than its factorization.

211130000420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10556500030 (or 10556500028 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 211130000420 its reverse (24000031112), we get a palindrome (235130031532).

The spelling of 211130000420 in words is "two hundred eleven billion, one hundred thirty million, four hundred twenty", and thus it is an aban number.