1103120001 has 12 divisors (see below), whose sum is σ = 1595710480. Its totient is φ = 734344920.

The previous prime is 1103119999. The next prime is 1103120063. The reversal of 1103120001 is 1000213011.

It is not a de Polignac number, because 1103120001 - 2¹ = 1103119999 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103160001) 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, 82471 + ... + 94908.

Almost surely, 2^1103120001 is an apocalyptic number.

It is an amenable number.

1103120001 is a deficient number, since it is larger than the sum of its proper divisors (492590479).

1103120001 is a wasteful number, since it uses less digits than its factorization.

1103120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178076 (or 178073 counting only the distinct ones).

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

The square root of 1103120001 is about 33213.2503829420. The cubic root of 1103120001 is about 1033.2551684082.

Adding to 1103120001 its reverse (1000213011), we get a palindrome (2103333012).

It can be divided in two parts, 1103 and 120001, that added together give a square (121104 = 348²).

The spelling of 1103120001 in words is "one billion, one hundred three million, one hundred twenty thousand, one".