1212002313 has 8 divisors (see below), whose sum is σ = 1619604000. Its totient is φ = 806201088.

The previous prime is 1212002291. The next prime is 1212002317. The reversal of 1212002313 is 3132002121.

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

It is not a de Polignac number, because 1212002313 - 2²² = 1207808009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212002292 and 1212002301.

It is not an unprimeable number, because it can be changed into a prime (1212002317) 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, 448543 + ... + 451236.

It is an arithmetic number, because the mean of its divisors is an integer number (202450500).

Almost surely, 2^1212002313 is an apocalyptic number.

It is an amenable number.

1212002313 is a deficient number, since it is larger than the sum of its proper divisors (407601687).

1212002313 is an equidigital number, since it uses as much as digits as its factorization.

1212002313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900231.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1212002313 is about 34813.8235906371. The cubic root of 1212002313 is about 1066.1897005014.

Adding to 1212002313 its reverse (3132002121), we get a palindrome (4344004434).

The spelling of 1212002313 in words is "one billion, two hundred twelve million, two thousand, three hundred thirteen".