1212134413 has 24 divisors (see below), whose sum is σ = 1443163392. Its totient is φ = 1014842304.

The previous prime is 1212134411. The next prime is 1212134423. The reversal of 1212134413 is 3144312121.

It is not a de Polignac number, because 1212134413 - 2¹ = 1212134411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212134411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381156 + ... + 384322.

It is an arithmetic number, because the mean of its divisors is an integer number (60131808).

Almost surely, 2^1212134413 is an apocalyptic number.

It is an amenable number.

1212134413 is a deficient number, since it is larger than the sum of its proper divisors (231028979).

1212134413 is a wasteful number, since it uses less digits than its factorization.

1212134413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361 (or 3354 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1212134413 is about 34815.7207738114. The cubic root of 1212134413 is about 1066.2284349002.

Adding to 1212134413 its reverse (3144312121), we get a palindrome (4356446534).

The spelling of 1212134413 in words is "one billion, two hundred twelve million, one hundred thirty-four thousand, four hundred thirteen".