1213104142 has 8 divisors (see below), whose sum is σ = 1827603000. Its totient is φ = 603903144.

The previous prime is 1213104131. The next prime is 1213104143. The reversal of 1213104142 is 2414013121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213104143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323892 + ... + 1324807.

It is an arithmetic number, because the mean of its divisors is an integer number (228450375).

Almost surely, 2^1213104142 is an apocalyptic number.

1213104142 is a deficient number, since it is larger than the sum of its proper divisors (614498858).

1213104142 is a wasteful number, since it uses less digits than its factorization.

1213104142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648930.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1213104142 is about 34829.6445861855. The cubic root of 1213104142 is about 1066.5126929876.

Adding to 1213104142 its reverse (2414013121), we get a palindrome (3627117263).

The spelling of 1213104142 in words is "one billion, two hundred thirteen million, one hundred four thousand, one hundred forty-two".