1101120003 has 12 divisors (see below), whose sum is σ = 1590828408. Its totient is φ = 733931520.

The previous prime is 1101119993. The next prime is 1101120019. The reversal of 1101120003 is 3000211011.

It is not a de Polignac number, because 1101120003 - 2¹⁰ = 1101118979 is a prime.

It is a super-2 number, since 2×1101120003² = 2424930522013440018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1101122003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52483 + ... + 70403.

It is an arithmetic number, because the mean of its divisors is an integer number (132569034).

Almost surely, 2^1101120003 is an apocalyptic number.

1101120003 is a deficient number, since it is larger than the sum of its proper divisors (489708405).

1101120003 is a wasteful number, since it uses less digits than its factorization.

1101120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24754 (or 24751 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1101120003 is about 33183.1282883335. The cubic root of 1101120003 is about 1032.6303471698.

Adding to 1101120003 its reverse (3000211011), we get a palindrome (4101331014).

It can be divided in two parts, 1101 and 120003, that added together give a square (121104 = 348²).

The spelling of 1101120003 in words is "one billion, one hundred one million, one hundred twenty thousand, three".