213402343012 has 12 divisors (see below), whose sum is σ = 374455320316. Its totient is φ = 106415108640.

The previous prime is 213402342977. The next prime is 213402343079. The reversal of 213402343012 is 210343204312.

It can be written as a sum of positive squares in 2 ways, for example, as 80983499776 + 132418843236 = 284576^2 + 363894^2 .

It is a super-2 number, since 2×213402343012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71514039 + ... + 71517022.

Almost surely, 2^213402343012 is an apocalyptic number.

It is an amenable number.

213402343012 is a deficient number, since it is larger than the sum of its proper divisors (161052977304).

213402343012 is a wasteful number, since it uses less digits than its factorization.

213402343012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143031438 (or 143031436 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 213402343012 its reverse (210343204312), we get a palindrome (423745547324).

The spelling of 213402343012 in words is "two hundred thirteen billion, four hundred two million, three hundred forty-three thousand, twelve".