1151041100213 has 4 divisors (see below), whose sum is σ = 1169910626508. Its totient is φ = 1132171573920.

The previous prime is 1151041100149. The next prime is 1151041100243. The reversal of 1151041100213 is 3120011401511.

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 376398201169 + 774642899044 = 613513^2 + 880138^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151041100213 - 2⁶ = 1151041100149 is a prime.

It is a super-2 number, since 2×1151041100213² (a number of 25 digits) 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 (1151041100243) 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, 9434763056 + ... + 9434763177.

It is an arithmetic number, because the mean of its divisors is an integer number (292477656627).

Almost surely, 2^{1151041100213} is an apocalyptic number.

It is an amenable number.

1151041100213 is a deficient number, since it is larger than the sum of its proper divisors (18869526295).

1151041100213 is an equidigital number, since it uses as much as digits as its factorization.

1151041100213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18869526294.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 1151041100213 its reverse (3120011401511), we get a palindrome (4271052501724).

The spelling of 1151041100213 in words is "one trillion, one hundred fifty-one billion, forty-one million, one hundred thousand, two hundred thirteen".