1102121043 has 4 divisors (see below), whose sum is σ = 1469494728. Its totient is φ = 734747360.

The previous prime is 1102121039. The next prime is 1102121057. The reversal of 1102121043 is 3401212011.

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 1102121043 - 2² = 1102121039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1102121063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183686838 + ... + 183686843.

It is an arithmetic number, because the mean of its divisors is an integer number (367373682).

Almost surely, 2^1102121043 is an apocalyptic number.

1102121043 is a deficient number, since it is larger than the sum of its proper divisors (367373685).

1102121043 is an equidigital number, since it uses as much as digits as its factorization.

1102121043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367373684.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1102121043 is about 33198.2084305765. The cubic root of 1102121043 is about 1032.9431774963.

Adding to 1102121043 its reverse (3401212011), we get a palindrome (4503333054).

The spelling of 1102121043 in words is "one billion, one hundred two million, one hundred twenty-one thousand, forty-three".