1213535122203 has 8 divisors (see below), whose sum is σ = 1618053746688. Its totient is φ = 809019956264.

The previous prime is 1213535122183. The next prime is 1213535122259. The reversal of 1213535122203 is 3022215353121.

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 1213535122203 - 2⁶ = 1213535122139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213535122003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111526 + ... + 1561892.

It is an arithmetic number, because the mean of its divisors is an integer number (202256718336).

Almost surely, 2^{1213535122203} is an apocalyptic number.

1213535122203 is a deficient number, since it is larger than the sum of its proper divisors (404518624485).

1213535122203 is a wasteful number, since it uses less digits than its factorization.

1213535122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729273.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 1213535122203 in words is "one trillion, two hundred thirteen billion, five hundred thirty-five million, one hundred twenty-two thousand, two hundred three".