1212323434 has 8 divisors (see below), whose sum is σ = 2078268768. Its totient is φ = 519567180.

The previous prime is 1212323423. The next prime is 1212323449. The reversal of 1212323434 is 4343232121.

1212323434 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1212323399 and 1212323408.

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, 43297252 + ... + 43297279.

It is an arithmetic number, because the mean of its divisors is an integer number (259783596).

Almost surely, 2^1212323434 is an apocalyptic number.

1212323434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1212323434 is a deficient number, since it is larger than the sum of its proper divisors (865945334).

1212323434 is an equidigital number, since it uses as much as digits as its factorization.

1212323434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86594540.

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

The square root of 1212323434 is about 34818.4352606489. The cubic root of 1212323434 is about 1066.2838547964.

Adding to 1212323434 its reverse (4343232121), we get a palindrome (5555555555).

The spelling of 1212323434 in words is "one billion, two hundred twelve million, three hundred twenty-three thousand, four hundred thirty-four".