1213012002 has 16 divisors (see below), whose sum is σ = 2477642112. Its totient is φ = 395734320.

The previous prime is 1213011997. The next prime is 1213012013. The reversal of 1213012002 is 2002103121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150449 + ... + 2151012.

It is an arithmetic number, because the mean of its divisors is an integer number (154852632).

Almost surely, 2^1213012002 is an apocalyptic number.

1213012002 is an abundant number, since it is smaller than the sum of its proper divisors (1264630110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213012002 is a wasteful number, since it uses less digits than its factorization.

1213012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301513.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1213012002 is about 34828.3218372634. The cubic root of 1213012002 is about 1066.4856903684.

Adding to 1213012002 its reverse (2002103121), we get a palindrome (3215115123).

The spelling of 1213012002 in words is "one billion, two hundred thirteen million, twelve thousand, two".