1213503141 has 8 divisors (see below), whose sum is σ = 1624775040. Its totient is φ = 805616672.

The previous prime is 1213503101. The next prime is 1213503143. The reversal of 1213503141 is 1413053121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213503141 - 2⁷ = 1213503013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213503143) 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 7 ways as a sum of consecutive naturals, for example, 845520 + ... + 846953.

It is an arithmetic number, because the mean of its divisors is an integer number (203096880).

Almost surely, 2^1213503141 is an apocalyptic number.

It is an amenable number.

1213503141 is a deficient number, since it is larger than the sum of its proper divisors (411271899).

1213503141 is a wasteful number, since it uses less digits than its factorization.

1213503141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692715.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1213503141 is about 34835.3719802157. The cubic root of 1213503141 is about 1066.6296081635.

Adding to 1213503141 its reverse (1413053121), we get a palindrome (2626556262).

The spelling of 1213503141 in words is "one billion, two hundred thirteen million, five hundred three thousand, one hundred forty-one".