212700531328 has 16 divisors (see below), whose sum is σ = 423739340010. Its totient is φ = 106350265600.

The previous prime is 212700531313. The next prime is 212700531343. The reversal of 212700531328 is 823135007212.

It is an interprime number because it is at equal distance from previous prime (212700531313) and next prime (212700531343).

It can be written as a sum of positive squares in only one way, i.e., 211386613824 + 1313917504 = 459768^2 + 36248^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 212700531293 and 212700531302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830861323 + ... + 830861578.

Almost surely, 2^212700531328 is an apocalyptic number.

It is an amenable number.

212700531328 is a deficient number, since it is larger than the sum of its proper divisors (211038808682).

212700531328 is an equidigital number, since it uses as much as digits as its factorization.

212700531328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661722915 (or 1661722903 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 212700531328 in words is "two hundred twelve billion, seven hundred million, five hundred thirty-one thousand, three hundred twenty-eight".