211130323420 has 24 divisors (see below), whose sum is σ = 458662428000. Its totient is φ = 81539986752.

The previous prime is 211130323399. The next prime is 211130323433. The reversal of 211130323420 is 24323031112.

It is a junction number, because it is equal to n+sod(n) for n = 211130323391 and 211130323400.

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, 182008320 + ... + 182009479.

It is an arithmetic number, because the mean of its divisors is an integer number (19110934500).

Almost surely, 2^211130323420 is an apocalyptic number.

211130323420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211130323420 is an abundant number, since it is smaller than the sum of its proper divisors (247532104580).

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

211130323420 is a wasteful number, since it uses less digits than its factorization.

211130323420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364017837 (or 364017835 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 211130323420 its reverse (24323031112), we get a palindrome (235453354532).

The spelling of 211130323420 in words is "two hundred eleven billion, one hundred thirty million, three hundred twenty-three thousand, four hundred twenty".