134140031213 has 4 divisors (see below), whose sum is σ = 137765437500. Its totient is φ = 130514624928.

The previous prime is 134140031203. The next prime is 134140031243. The reversal of 134140031213 is 312130041431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 69866119684 + 64273911529 = 264322^2 + 253523^2 .

It is a cyclic number.

It is not a de Polignac number, because 134140031213 - 2⁴ = 134140031197 is a prime.

It is a super-2 number, since 2×134140031213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134140031203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1812703088 + ... + 1812703161.

It is an arithmetic number, because the mean of its divisors is an integer number (34441359375).

Almost surely, 2^134140031213 is an apocalyptic number.

It is an amenable number.

134140031213 is a deficient number, since it is larger than the sum of its proper divisors (3625406287).

134140031213 is an equidigital number, since it uses as much as digits as its factorization.

134140031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625406286.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 134140031213 its reverse (312130041431), we get a palindrome (446270072644).

The spelling of 134140031213 in words is "one hundred thirty-four billion, one hundred forty million, thirty-one thousand, two hundred thirteen".