1103162311100 has 72 divisors (see below), whose sum is σ = 2433329152800. Its totient is φ = 434047438080.

The previous prime is 1103162311099. The next prime is 1103162311109. The reversal of 1103162311100 is 11132613011.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103162311109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1175294 + ... + 1894106.

Almost surely, 2^{1103162311100} is an apocalyptic number.

1103162311100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103162311100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1216664576400).

1103162311100 is an abundant number, since it is smaller than the sum of its proper divisors (1330166841700).

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

1103162311100 is a wasteful number, since it uses less digits than its factorization.

1103162311100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719079 (or 719072 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1103162311100 its reverse (11132613011), we get a palindrome (1114294924111).

The spelling of 1103162311100 in words is "one trillion, one hundred three billion, one hundred sixty-two million, three hundred eleven thousand, one hundred".