1021441233142 has 48 divisors (see below), whose sum is σ = 1681900343856. Its totient is φ = 461404697600.

The previous prime is 1021441233121. The next prime is 1021441233151. The reversal of 1021441233142 is 2413321441201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021441233142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1071816138 + ... + 1071817090.

It is an arithmetic number, because the mean of its divisors is an integer number (35039590497).

Almost surely, 2^{1021441233142} is an apocalyptic number.

1021441233142 is a deficient number, since it is larger than the sum of its proper divisors (660459110714).

1021441233142 is an equidigital number, since it uses as much as digits as its factorization.

1021441233142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145 (or 1864 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1021441233142 its reverse (2413321441201), we get a palindrome (3434762674343).

The spelling of 1021441233142 in words is "one trillion, twenty-one billion, four hundred forty-one million, two hundred thirty-three thousand, one hundred forty-two".