1102120123 has 8 divisors (see below), whose sum is σ = 1206356816. Its totient is φ = 1000663200.

The previous prime is 1102120093. The next prime is 1102120157. The reversal of 1102120123 is 3210212011.

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 1102120123 - 2¹⁷ = 1101989051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102120163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694113 + ... + 695698.

It is an arithmetic number, because the mean of its divisors is an integer number (150794602).

Almost surely, 2^1102120123 is an apocalyptic number.

1102120123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1102120123 is a deficient number, since it is larger than the sum of its proper divisors (104236693).

1102120123 is a wasteful number, since it uses less digits than its factorization.

1102120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389885.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1102120123 is about 33198.1945744042. The cubic root of 1102120123 is about 1032.9428900784.

Adding to 1102120123 its reverse (3210212011), we get a palindrome (4312332134).

The spelling of 1102120123 in words is "one billion, one hundred two million, one hundred twenty thousand, one hundred twenty-three".