1213010002 has 4 divisors (see below), whose sum is σ = 1819515006. Its totient is φ = 606505000.

The previous prime is 1213009997. The next prime is 1213010021. The reversal of 1213010002 is 2000103121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 729054001 + 483956001 = 27001^2 + 21999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303252499 + ... + 303252502.

Almost surely, 2^1213010002 is an apocalyptic number.

1213010002 is a deficient number, since it is larger than the sum of its proper divisors (606505004).

1213010002 is an equidigital number, since it uses as much as digits as its factorization.

1213010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606505003.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1213010002 is about 34828.2931249868. The cubic root of 1213010002 is about 1066.4851042317.

Adding to 1213010002 its reverse (2000103121), we get a palindrome (3213113123).

The spelling of 1213010002 in words is "one billion, two hundred thirteen million, ten thousand, two".