213711216402 has 16 divisors (see below), whose sum is σ = 449918350560. Its totient is φ = 67487752512.

The previous prime is 213711216373. The next prime is 213711216403. The reversal of 213711216402 is 204612117312.

213711216402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213711216402.

It is not an unprimeable number, because it can be changed into a prime (213711216403) 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, 937329783 + ... + 937330010.

It is an arithmetic number, because the mean of its divisors is an integer number (28119896910).

Almost surely, 2^213711216402 is an apocalyptic number.

213711216402 is an abundant number, since it is smaller than the sum of its proper divisors (236207134158).

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

213711216402 is a wasteful number, since it uses less digits than its factorization.

213711216402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874659817.

The product of its (nonzero) digits is 4032, while the sum is 30.

The spelling of 213711216402 in words is "two hundred thirteen billion, seven hundred eleven million, two hundred sixteen thousand, four hundred two".