1010231230021 has 8 divisors (see below), whose sum is σ = 1087955133944. Its totient is φ = 932509298880.

The previous prime is 1010231229967. The next prime is 1010231230027. The reversal of 1010231230021 is 1200321320101.

It can be written as a sum of positive squares in 4 ways, for example, as 4043688100 + 1006187541921 = 63590^2 + 1003089^2 .

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 1010231230021 - 2⁷ = 1010231229893 is a prime.

It is a super-2 number, since 2×1010231230021² (a number of 25 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 = 1010231229977 and 1010231230004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010231230027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672415 + ... + 1572451.

It is an arithmetic number, because the mean of its divisors is an integer number (135994391743).

Almost surely, 2^{1010231230021} is an apocalyptic number.

It is an amenable number.

1010231230021 is a deficient number, since it is larger than the sum of its proper divisors (77723903923).

1010231230021 is an equidigital number, since it uses as much as digits as its factorization.

1010231230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986391.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1010231230021 its reverse (1200321320101), we get a palindrome (2210552550122).

The spelling of 1010231230021 in words is "one trillion, ten billion, two hundred thirty-one million, two hundred thirty thousand, twenty-one".