11657233211 has 16 divisors (see below), whose sum is σ = 13405781760. Its totient is φ = 10054316160.

The previous prime is 11657233199. The next prime is 11657233243. The reversal of 11657233211 is 11233275611.

It is a cyclic number.

It is not a de Polignac number, because 11657233211 - 2¹⁴ = 11657216827 is a prime.

It is a super-2 number, since 2×11657233211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11657239211) 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 15 ways as a sum of consecutive naturals, for example, 487040 + ... + 510413.

It is an arithmetic number, because the mean of its divisors is an integer number (837861360).

Almost surely, 2^11657233211 is an apocalyptic number.

11657233211 is a deficient number, since it is larger than the sum of its proper divisors (1748548549).

11657233211 is a wasteful number, since it uses less digits than its factorization.

11657233211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997526.

The product of its digits is 7560, while the sum is 32.

The spelling of 11657233211 in words is "eleven billion, six hundred fifty-seven million, two hundred thirty-three thousand, two hundred eleven".