1102002131 has 4 divisors (see below), whose sum is σ = 1118449992. Its totient is φ = 1085554272.

The previous prime is 1102002089. The next prime is 1102002133. The reversal of 1102002131 is 1312002011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312002011 = 11321 ⋅115891.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102002131 is a prime.

It is a super-2 number, since 2×1102002131² = 2428817393457082322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102002133) 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, 8223830 + ... + 8223963.

It is an arithmetic number, because the mean of its divisors is an integer number (279612498).

Almost surely, 2^1102002131 is an apocalyptic number.

1102002131 is a deficient number, since it is larger than the sum of its proper divisors (16447861).

1102002131 is an equidigital number, since it uses as much as digits as its factorization.

1102002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16447860.

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

The square root of 1102002131 is about 33196.4174422482. The cubic root of 1102002131 is about 1032.9060267805.

Adding to 1102002131 its reverse (1312002011), we get a palindrome (2414004142).

The spelling of 1102002131 in words is "one billion, one hundred two million, two thousand, one hundred thirty-one".