1131211101 has 8 divisors (see below), whose sum is σ = 1549045984. Its totient is φ = 733758480.

The previous prime is 1131211099. The next prime is 1131211117. The reversal of 1131211101 is 1011121311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131211101 - 2¹ = 1131211099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131211901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5095435 + ... + 5095656.

It is an arithmetic number, because the mean of its divisors is an integer number (193630748).

Almost surely, 2^1131211101 is an apocalyptic number.

It is an amenable number.

1131211101 is a deficient number, since it is larger than the sum of its proper divisors (417834883).

1131211101 is a wasteful number, since it uses less digits than its factorization.

1131211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10191131.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1131211101 is about 33633.4818447332. The cubic root of 1131211101 is about 1041.9524162778.

Adding to 1131211101 its reverse (1011121311), we get a palindrome (2142332412).

The spelling of 1131211101 in words is "one billion, one hundred thirty-one million, two hundred eleven thousand, one hundred one".