213311121302 has 4 divisors (see below), whose sum is σ = 319966681956. Its totient is φ = 106655560650.

The previous prime is 213311121301. The next prime is 213311121347. The reversal of 213311121302 is 203121113312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×213311121302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213311121301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53327780324 + ... + 53327780327.

It is an arithmetic number, because the mean of its divisors is an integer number (79991670489).

Almost surely, 2^213311121302 is an apocalyptic number.

213311121302 is a deficient number, since it is larger than the sum of its proper divisors (106655560654).

213311121302 is a wasteful number, since it uses less digits than its factorization.

213311121302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106655560653.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213311121302 its reverse (203121113312), we get a palindrome (416432234614).

The spelling of 213311121302 in words is "two hundred thirteen billion, three hundred eleven million, one hundred twenty-one thousand, three hundred two".