1011332540249 has 4 divisors (see below), whose sum is σ = 1016466208164. Its totient is φ = 1006198872336.

The previous prime is 1011332540177. The next prime is 1011332540287. The reversal of 1011332540249 is 9420452331101.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 474472992400 + 536859547849 = 688820^2 + 732707^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011332540249 - 2²⁰ = 1011331491673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011331540249) 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, 2566833662 + ... + 2566834055.

It is an arithmetic number, because the mean of its divisors is an integer number (254116552041).

Almost surely, 2^{1011332540249} is an apocalyptic number.

It is an amenable number.

1011332540249 is a deficient number, since it is larger than the sum of its proper divisors (5133667915).

1011332540249 is an equidigital number, since it uses as much as digits as its factorization.

1011332540249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133667914.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 1011332540249 in words is "one trillion, eleven billion, three hundred thirty-two million, five hundred forty thousand, two hundred forty-nine".