1212311414 has 4 divisors (see below), whose sum is σ = 1818467124. Its totient is φ = 606155706.

The previous prime is 1212311311. The next prime is 1212311417. The reversal of 1212311414 is 4141132121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4141132121 = 7 ⋅591590303.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212311417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303077852 + ... + 303077855.

It is an arithmetic number, because the mean of its divisors is an integer number (454616781).

Almost surely, 2^1212311414 is an apocalyptic number.

1212311414 is a deficient number, since it is larger than the sum of its proper divisors (606155710).

1212311414 is an equidigital number, since it uses as much as digits as its factorization.

1212311414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606155709.

The product of its digits is 192, while the sum is 20.

The square root of 1212311414 is about 34818.2626505114. The cubic root of 1212311414 is about 1066.2803307714.

Adding to 1212311414 its reverse (4141132121), we get a palindrome (5353443535).

The spelling of 1212311414 in words is "one billion, two hundred twelve million, three hundred eleven thousand, four hundred fourteen".