1235513103 has 64 divisors (see below), whose sum is σ = 1928945664. Its totient is φ = 696080000.

The previous prime is 1235513099. The next prime is 1235513117. The reversal of 1235513103 is 3013155321.

1235513103 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1235513103 - 2² = 1235513099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235513203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5442676 + ... + 5442902.

It is an arithmetic number, because the mean of its divisors is an integer number (30139776).

Almost surely, 2^1235513103 is an apocalyptic number.

1235513103 is a deficient number, since it is larger than the sum of its proper divisors (693432561).

1235513103 is a wasteful number, since it uses less digits than its factorization.

1235513103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1235513103 is about 35149.8663297601. The cubic root of 1235513103 is about 1073.0396877376.

Adding to 1235513103 its reverse (3013155321), we get a palindrome (4248668424).

The spelling of 1235513103 in words is "one billion, two hundred thirty-five million, five hundred thirteen thousand, one hundred three".