1102120423 has 4 divisors (see below), whose sum is σ = 1110533688. Its totient is φ = 1093707160.

The previous prime is 1102120391. The next prime is 1102120471. The reversal of 1102120423 is 3240212011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3240212011 = 4139 ⋅782849.

It is a cyclic number.

It is not a de Polignac number, because 1102120423 - 2⁵ = 1102120391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102120397 and 1102120406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102120823) 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, 4206436 + ... + 4206697.

It is an arithmetic number, because the mean of its divisors is an integer number (277633422).

Almost surely, 2^1102120423 is an apocalyptic number.

1102120423 is a deficient number, since it is larger than the sum of its proper divisors (8413265).

1102120423 is an equidigital number, since it uses as much as digits as its factorization.

1102120423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8413264.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1102120423 is about 33198.1990927219. The cubic root of 1102120423 is about 1032.9429838017.

Adding to 1102120423 its reverse (3240212011), we get a palindrome (4342332434).

The spelling of 1102120423 in words is "one billion, one hundred two million, one hundred twenty thousand, four hundred twenty-three".