1103121011003 has 8 divisors (see below), whose sum is σ = 1203912319296. Its totient is φ = 1002414299400.

The previous prime is 1103121010897. The next prime is 1103121011081. The reversal of 1103121011003 is 3001101213011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1103121011003 - 2¹⁶ = 1103120945467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103121311003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21121901 + ... + 21174062.

It is an arithmetic number, because the mean of its divisors is an integer number (150489039912).

Almost surely, 2^{1103121011003} is an apocalyptic number.

1103121011003 is a deficient number, since it is larger than the sum of its proper divisors (100791308293).

1103121011003 is a wasteful number, since it uses less digits than its factorization.

1103121011003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42298345.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1103121011003 its reverse (3001101213011), we get a palindrome (4104222224014).

The spelling of 1103121011003 in words is "one trillion, one hundred three billion, one hundred twenty-one million, eleven thousand, three".