1161001102 has 4 divisors (see below), whose sum is σ = 1741501656. Its totient is φ = 580500550.

The previous prime is 1161001091. The next prime is 1161001103. The reversal of 1161001102 is 2011001611.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161001103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290250274 + ... + 290250277.

It is an arithmetic number, because the mean of its divisors is an integer number (435375414).

Almost surely, 2^1161001102 is an apocalyptic number.

1161001102 is a deficient number, since it is larger than the sum of its proper divisors (580500554).

1161001102 is an equidigital number, since it uses as much as digits as its factorization.

1161001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580500553.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1161001102 is about 34073.4662457461. The cubic root of 1161001102 is about 1051.0197506521.

Adding to 1161001102 its reverse (2011001611), we get a palindrome (3172002713).

The spelling of 1161001102 in words is "one billion, one hundred sixty-one million, one thousand, one hundred two".