1102100123 has 4 divisors (see below), whose sum is σ = 1166929560. Its totient is φ = 1037270688.

The previous prime is 1102100113. The next prime is 1102100143. The reversal of 1102100123 is 3210012011.

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 1102100123 - 2¹² = 1102096027 is a prime.

It is a super-2 number, since 2×1102100123² = 2429249362233230258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102100113) 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, 32414693 + ... + 32414726.

It is an arithmetic number, because the mean of its divisors is an integer number (291732390).

Almost surely, 2^1102100123 is an apocalyptic number.

1102100123 is a deficient number, since it is larger than the sum of its proper divisors (64829437).

1102100123 is an equidigital number, since it uses as much as digits as its factorization.

1102100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64829436.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1102100123 is about 33197.8933518379. The cubic root of 1102100123 is about 1032.9366418234.

Adding to 1102100123 its reverse (3210012011), we get a palindrome (4312112134).

The spelling of 1102100123 in words is "one billion, one hundred two million, one hundred thousand, one hundred twenty-three".