1101603312 has 30 divisors (see below), whose sum is σ = 3082959672. Its totient is φ = 367201056.

The previous prime is 1101603311. The next prime is 1101603313. The reversal of 1101603312 is 2133061011.

It is an interprime number because it is at equal distance from previous prime (1101603311) and next prime (1101603313).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101603311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3824868 + ... + 3825155.

Almost surely, 2^1101603312 is an apocalyptic number.

1101603312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101603312 is an abundant number, since it is smaller than the sum of its proper divisors (1981356360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101603312 is a wasteful number, since it uses less digits than its factorization.

1101603312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650037 (or 7650028 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1101603312 is about 33190.4099402222. The cubic root of 1101603312 is about 1032.7814074652.

Adding to 1101603312 its reverse (2133061011), we get a palindrome (3234664323).

The spelling of 1101603312 in words is "one billion, one hundred one million, six hundred three thousand, three hundred twelve".