1140101721 has 24 divisors (see below), whose sum is σ = 1798646304. Its totient is φ = 690154560.

The previous prime is 1140101689. The next prime is 1140101723. The reversal of 1140101721 is 1271010411.

It is not a de Polignac number, because 1140101721 - 2⁵ = 1140101689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1140101694 and 1140101703.

It is not an unprimeable number, because it can be changed into a prime (1140101723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83445 + ... + 96141.

It is an arithmetic number, because the mean of its divisors is an integer number (74943596).

Almost surely, 2^1140101721 is an apocalyptic number.

1140101721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1140101721 is a deficient number, since it is larger than the sum of its proper divisors (658544583).

1140101721 is a wasteful number, since it uses less digits than its factorization.

1140101721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13621 (or 13618 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The square root of 1140101721 is about 33765.3923566719. The cubic root of 1140101721 is about 1044.6749967242.

The spelling of 1140101721 in words is "one billion, one hundred forty million, one hundred one thousand, seven hundred twenty-one".