1201535103 has 8 divisors (see below), whose sum is σ = 1611875968. Its totient is φ = 796108824.

The previous prime is 1201535089. The next prime is 1201535113. The reversal of 1201535103 is 3015351021.

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

It is not a de Polignac number, because 1201535103 - 2⁹ = 1201534591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201535103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201535113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228075 + ... + 1229052.

It is an arithmetic number, because the mean of its divisors is an integer number (201484496).

Almost surely, 2^1201535103 is an apocalyptic number.

1201535103 is a deficient number, since it is larger than the sum of its proper divisors (410340865).

1201535103 is a wasteful number, since it uses less digits than its factorization.

1201535103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457293.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1201535103 is about 34663.1663729671. The cubic root of 1201535103 is about 1063.1115123050. Note that the first 3 decimals are identical.

Adding to 1201535103 its reverse (3015351021), we get a palindrome (4216886124).

The spelling of 1201535103 in words is "one billion, two hundred one million, five hundred thirty-five thousand, one hundred three".