11699920133 has 4 divisors (see below), whose sum is σ = 12763549248. Its totient is φ = 10636291020.

The previous prime is 11699920121. The next prime is 11699920147. The reversal of 11699920133 is 33102999611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11699920133 - 2⁶ = 11699920069 is a prime.

It is a super-2 number, since 2×11699920133² (a number of 21 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 (11699920733) 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, 531814541 + ... + 531814562.

It is an arithmetic number, because the mean of its divisors is an integer number (3190887312).

Almost surely, 2^11699920133 is an apocalyptic number.

It is an amenable number.

11699920133 is a deficient number, since it is larger than the sum of its proper divisors (1063629115).

11699920133 is a wasteful number, since it uses less digits than its factorization.

11699920133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063629114.

The product of its (nonzero) digits is 78732, while the sum is 44.

The spelling of 11699920133 in words is "eleven billion, six hundred ninety-nine million, nine hundred twenty thousand, one hundred thirty-three".