10231721686043 has 16 divisors (see below), whose sum is σ = 12126860204256. Its totient is φ = 8510077309440.

The previous prime is 10231721686037. The next prime is 10231721686097. The reversal of 10231721686043 is 34068612713201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10231721686043 - 2⁴² = 5833675174939 is a prime.

It is a super-2 number, since 2×10231721686043² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10231721685985 and 10231721686003.

It is not an unprimeable number, because it can be changed into a prime (10231721686003) 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, 316578980 + ... + 316611297.

It is an arithmetic number, because the mean of its divisors is an integer number (757928762766).

Almost surely, 2^{10231721686043} is an apocalyptic number.

10231721686043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10231721686043 is a deficient number, since it is larger than the sum of its proper divisors (1895138518213).

10231721686043 is a wasteful number, since it uses less digits than its factorization.

10231721686043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633190414.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 10231721686043 in words is "ten trillion, two hundred thirty-one billion, seven hundred twenty-one million, six hundred eighty-six thousand, forty-three".