1101323123 has 4 divisors (see below), whose sum is σ = 1102574088. Its totient is φ = 1100072160.

The previous prime is 1101323107. The next prime is 1101323137. The reversal of 1101323123 is 3213231011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101323123 - 2⁴ = 1101323107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101323173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624161 + ... + 625922.

It is an arithmetic number, because the mean of its divisors is an integer number (275643522).

Almost surely, 2^1101323123 is an apocalyptic number.

1101323123 is a deficient number, since it is larger than the sum of its proper divisors (1250965).

1101323123 is an equidigital number, since it uses as much as digits as its factorization.

1101323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250964.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1101323123 is about 33186.1887386907. The cubic root of 1101323123 is about 1032.6938385784.

Adding to 1101323123 its reverse (3213231011), we get a palindrome (4314554134).

The spelling of 1101323123 in words is "one billion, one hundred one million, three hundred twenty-three thousand, one hundred twenty-three".