1103312343 has 16 divisors (see below), whose sum is σ = 1682516736. Its totient is φ = 629984640.

The previous prime is 1103312297. The next prime is 1103312363. The reversal of 1103312343 is 3432133011.

It is not a de Polignac number, because 1103312343 - 2¹² = 1103308247 is a prime.

It is a super-2 number, since 2×1103312343² = 2434596252432299298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103312363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9280 + ... + 47882.

It is an arithmetic number, because the mean of its divisors is an integer number (105157296).

Almost surely, 2^1103312343 is an apocalyptic number.

1103312343 is a deficient number, since it is larger than the sum of its proper divisors (579204393).

1103312343 is a wasteful number, since it uses less digits than its factorization.

1103312343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39974.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1103312343 is about 33216.1458179603. The cubic root of 1103312343 is about 1033.3152183320.

Adding to 1103312343 its reverse (3432133011), we get a palindrome (4535445354).

The spelling of 1103312343 in words is "one billion, one hundred three million, three hundred twelve thousand, three hundred forty-three".