1102021243 has 16 divisors (see below), whose sum is σ = 1195983360. Its totient is φ = 1011378816.

The previous prime is 1102021231. The next prime is 1102021259. The reversal of 1102021243 is 3421202011.

It is a cyclic number.

It is not a de Polignac number, because 1102021243 - 2¹³ = 1102013051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102021043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706098 + ... + 707656.

It is an arithmetic number, because the mean of its divisors is an integer number (74748960).

Almost surely, 2^1102021243 is an apocalyptic number.

1102021243 is a deficient number, since it is larger than the sum of its proper divisors (93962117).

1102021243 is a wasteful number, since it uses less digits than its factorization.

1102021243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586.

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

The square root of 1102021243 is about 33196.7053033882. The cubic root of 1102021243 is about 1032.9119979686.

Adding to 1102021243 its reverse (3421202011), we get a palindrome (4523223254).

The spelling of 1102021243 in words is "one billion, one hundred two million, twenty-one thousand, two hundred forty-three".