213203422120 has 32 divisors (see below), whose sum is σ = 516608293320. Its totient is φ = 78721263360.

The previous prime is 213203422097. The next prime is 213203422121. The reversal of 213203422120 is 21224302312.

It can be written as a sum of positive squares in 4 ways, for example, as 91239035364 + 121964386756 = 302058^2 + 349234^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213203422091 and 213203422100.

It is not an unprimeable number, because it can be changed into a prime (213203422121) 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, 205002771 + ... + 205003810.

Almost surely, 2^213203422120 is an apocalyptic number.

213203422120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213203422120 is an abundant number, since it is smaller than the sum of its proper divisors (303404871200).

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

213203422120 is a wasteful number, since it uses less digits than its factorization.

213203422120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410006605 (or 410006601 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 213203422120 its reverse (21224302312), we get a palindrome (234427724432).

The spelling of 213203422120 in words is "two hundred thirteen billion, two hundred three million, four hundred twenty-two thousand, one hundred twenty".