1212323413 has 8 divisors (see below), whose sum is σ = 1392768000. Its totient is φ = 1033692720.

The previous prime is 1212323407. The next prime is 1212323423. The reversal of 1212323413 is 3143232121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212323413 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 (1212323423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452038 + ... + 454711.

It is an arithmetic number, because the mean of its divisors is an integer number (174096000).

Almost surely, 2^1212323413 is an apocalyptic number.

It is an amenable number.

1212323413 is a deficient number, since it is larger than the sum of its proper divisors (180444587).

1212323413 is an equidigital number, since it uses as much as digits as its factorization.

1212323413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906947.

The product of its digits is 864, while the sum is 22.

The square root of 1212323413 is about 34818.4349590845. The cubic root of 1212323413 is about 1066.2838486396.

Adding to 1212323413 its reverse (3143232121), we get a palindrome (4355555534).

The spelling of 1212323413 in words is "one billion, two hundred twelve million, three hundred twenty-three thousand, four hundred thirteen".