1102131021 has 16 divisors (see below), whose sum is σ = 1488844224. Its totient is φ = 725105664.

The previous prime is 1102131001. The next prime is 1102131071. The reversal of 1102131021 is 1201312011.

It is not a de Polignac number, because 1102131021 - 2⁵ = 1102130989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1102130988 and 1102131006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102131001) 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, 301215 + ... + 304851.

It is an arithmetic number, because the mean of its divisors is an integer number (93052764).

Almost surely, 2^1102131021 is an apocalyptic number.

It is an amenable number.

1102131021 is a deficient number, since it is larger than the sum of its proper divisors (386713203).

1102131021 is a wasteful number, since it uses less digits than its factorization.

1102131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4940.

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

The square root of 1102131021 is about 33198.3587094302. The cubic root of 1102131021 is about 1032.9462947208.

Adding to 1102131021 its reverse (1201312011), we get a palindrome (2303443032).

The spelling of 1102131021 in words is "one billion, one hundred two million, one hundred thirty-one thousand, twenty-one".