11851229512231 has 8 divisors (see below), whose sum is σ = 12345761436800. Its totient is φ = 11363712225120.

The previous prime is 11851229512229. The next prime is 11851229512307. The reversal of 11851229512231 is 13221592215811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11851229512231 - 2¹ = 11851229512229 is a prime.

It is a super-2 number, since 2×11851229512231² (a number of 27 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 (11851229512631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1753655916 + ... + 1753662673.

It is an arithmetic number, because the mean of its divisors is an integer number (1543220179600).

Almost surely, 2^{11851229512231} is an apocalyptic number.

11851229512231 is a deficient number, since it is larger than the sum of its proper divisors (494531924569).

11851229512231 is a wasteful number, since it uses less digits than its factorization.

11851229512231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507318729.

The product of its digits is 86400, while the sum is 43.

The spelling of 11851229512231 in words is "eleven trillion, eight hundred fifty-one billion, two hundred twenty-nine million, five hundred twelve thousand, two hundred thirty-one".