1140021101 has 8 divisors (see below), whose sum is σ = 1146647040. Its totient is φ = 1133414352.

The previous prime is 1140021089. The next prime is 1140021137. The reversal of 1140021101 is 1011200411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140021101 is a prime.

It is a super-2 number, since 2×1140021101² = 2599296221450504402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140021901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124196 + ... + 133058.

It is an arithmetic number, because the mean of its divisors is an integer number (143330880).

Almost surely, 2^1140021101 is an apocalyptic number.

It is an amenable number.

1140021101 is a deficient number, since it is larger than the sum of its proper divisors (6625939).

1140021101 is an equidigital number, since it uses as much as digits as its factorization.

1140021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1140021101 is about 33764.1985096640. The cubic root of 1140021101 is about 1044.6503721134.

Adding to 1140021101 its reverse (1011200411), we get a palindrome (2151221512).

The spelling of 1140021101 in words is "one billion, one hundred forty million, twenty-one thousand, one hundred one".