1230111310021 has 8 divisors (see below), whose sum is σ = 1342021400064. Its totient is φ = 1118214851520.

The previous prime is 1230111310007. The next prime is 1230111310117. The reversal of 1230111310021 is 1200131110321.

It is a happy number.

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 1230111310021 - 2⁵ = 1230111309989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230111309977 and 1230111310004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230111317021) 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, 3218740 + ... + 3580573.

It is an arithmetic number, because the mean of its divisors is an integer number (167752675008).

Almost surely, 2^{1230111310021} is an apocalyptic number.

1230111310021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1230111310021 is a deficient number, since it is larger than the sum of its proper divisors (111910090043).

1230111310021 is a wasteful number, since it uses less digits than its factorization.

1230111310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6815771.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1230111310021 its reverse (1200131110321), we get a palindrome (2430242420342).

The spelling of 1230111310021 in words is "one trillion, two hundred thirty billion, one hundred eleven million, three hundred ten thousand, twenty-one".