11335251213 has 40 divisors (see below), whose sum is σ = 19893224736. Its totient is φ = 6341392800.

The previous prime is 11335251203. The next prime is 11335251223. The reversal of 11335251213 is 31215253311.

11335251213 is a `hidden beast` number, since 1 + 13 + 3 + 525 + 121 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (11335251203) and next prime (11335251223).

It is not a de Polignac number, because 11335251213 - 2⁸ = 11335250957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11335251203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 477723 + ... + 500888.

Almost surely, 2^11335251213 is an apocalyptic number.

11335251213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11335251213 is a deficient number, since it is larger than the sum of its proper divisors (8557973523).

11335251213 is a wasteful number, since it uses less digits than its factorization.

11335251213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978647 (or 978638 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The spelling of 11335251213 in words is "eleven billion, three hundred thirty-five million, two hundred fifty-one thousand, two hundred thirteen".