1021243043122 has 8 divisors (see below), whose sum is σ = 1531904521500. Its totient is φ = 510608202624.

The previous prime is 1021243043113. The next prime is 1021243043137. The reversal of 1021243043122 is 2213403421201.

It can be written as a sum of positive squares in 2 ways, for example, as 575578651561 + 445664391561 = 758669^2 + 667581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6563347 + ... + 6717142.

Almost surely, 2^{1021243043122} is an apocalyptic number.

1021243043122 is a deficient number, since it is larger than the sum of its proper divisors (510661478378).

1021243043122 is a wasteful number, since it uses less digits than its factorization.

1021243043122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13318940.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1021243043122 its reverse (2213403421201), we get a palindrome (3234646464323).

The spelling of 1021243043122 in words is "one trillion, twenty-one billion, two hundred forty-three million, forty-three thousand, one hundred twenty-two".