1235681568011 has 8 divisors (see below), whose sum is σ = 1348207359024. Its totient is φ = 1123187627520.

The previous prime is 1235681568001. The next prime is 1235681568031. The reversal of 1235681568011 is 1108651865321.

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 1235681568011 - 2¹⁴ = 1235681551627 is a prime.

It is a super-2 number, since 2×1235681568011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1235681568001) 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, 7881470 + ... + 8036723.

It is an arithmetic number, because the mean of its divisors is an integer number (168525919878).

Almost surely, 2^{1235681568011} is an apocalyptic number.

1235681568011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1235681568011 is a deficient number, since it is larger than the sum of its proper divisors (112525791013).

1235681568011 is a wasteful number, since it uses less digits than its factorization.

1235681568011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15925261.

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 1235681568011 in words is "one trillion, two hundred thirty-five billion, six hundred eighty-one million, five hundred sixty-eight thousand, eleven".