231022900681 has 8 divisors (see below), whose sum is σ = 247360939560. Its totient is φ = 214990245888.

The previous prime is 231022900679. The next prime is 231022900711. The reversal of 231022900681 is 186009220132.

231022900681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8356885056 + 222666015625 = 91416^2 + 471875^2 .

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 231022900681 - 2¹ = 231022900679 is a prime.

It is a super-2 number, since 2×231022900681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231022900621) 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 7 ways as a sum of consecutive naturals, for example, 76344456 + ... + 76347481.

It is an arithmetic number, because the mean of its divisors is an integer number (30920117445).

Almost surely, 2^231022900681 is an apocalyptic number.

It is an amenable number.

231022900681 is a deficient number, since it is larger than the sum of its proper divisors (16338038879).

231022900681 is a wasteful number, since it uses less digits than its factorization.

231022900681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152692043.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 231022900681 in words is "two hundred thirty-one billion, twenty-two million, nine hundred thousand, six hundred eighty-one".