1213013442 has 8 divisors (see below), whose sum is σ = 2426026896. Its totient is φ = 404337812.

The previous prime is 1213013441. The next prime is 1213013467. The reversal of 1213013442 is 2443103121.

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

1213013442 is an admirable number.

It is a super-2 number, since 2×1213013442² = 2942803220945374728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213013441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101084448 + ... + 101084459.

It is an arithmetic number, because the mean of its divisors is an integer number (303253362).

Almost surely, 2^1213013442 is an apocalyptic number.

1213013442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1213013442 is a wasteful number, since it uses less digits than its factorization.

1213013442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202168912.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1213013442 is about 34828.3425100880. The cubic root of 1213013442 is about 1066.4861123864.

Adding to 1213013442 its reverse (2443103121), we get a palindrome (3656116563).

The spelling of 1213013442 in words is "one billion, two hundred thirteen million, thirteen thousand, four hundred forty-two".