1103553312 has 48 divisors (see below), whose sum is σ = 2898830592. Its totient is φ = 367596800.

The previous prime is 1103553299. The next prime is 1103553323. The reversal of 1103553312 is 2133553011.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179473 + ... + 185519.

It is an arithmetic number, because the mean of its divisors is an integer number (60392304).

Almost surely, 2^1103553312 is an apocalyptic number.

1103553312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1103553312 is an abundant number, since it is smaller than the sum of its proper divisors (1795277280).

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

1103553312 is a wasteful number, since it uses less digits than its factorization.

1103553312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7961 (or 7953 counting only the distinct ones).

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

The square root of 1103553312 is about 33219.7729071106. The cubic root of 1103553312 is about 1033.3904399472.

The spelling of 1103553312 in words is "one billion, one hundred three million, five hundred fifty-three thousand, three hundred twelve".