1230143441021 has 16 divisors (see below), whose sum is σ = 1344177849600. Its totient is φ = 1116476786880.

The previous prime is 1230143440997. The next prime is 1230143441039. The reversal of 1230143441021 is 1201443410321.

It is a cyclic number.

It is not a de Polignac number, because 1230143441021 - 2²² = 1230139246717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230143441621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68495975 + ... + 68513931.

It is an arithmetic number, because the mean of its divisors is an integer number (84011115600).

Almost surely, 2^{1230143441021} is an apocalyptic number.

1230143441021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1230143441021 is a deficient number, since it is larger than the sum of its proper divisors (114034408579).

1230143441021 is a wasteful number, since it uses less digits than its factorization.

1230143441021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27844.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1230143441021 its reverse (1201443410321), we get a palindrome (2431586851342).

The spelling of 1230143441021 in words is "one trillion, two hundred thirty billion, one hundred forty-three million, four hundred forty-one thousand, twenty-one".