1021243213043 has 8 divisors (see below), whose sum is σ = 1116197516160. Its totient is φ = 930164595840.

The previous prime is 1021243213013. The next prime is 1021243213069. The reversal of 1021243213043 is 3403123421201.

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 1021243213043 - 2¹⁸ = 1021242950899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021243213013) 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, 968920928 + ... + 968921981.

It is an arithmetic number, because the mean of its divisors is an integer number (139524689520).

Almost surely, 2^{1021243213043} is an apocalyptic number.

1021243213043 is a deficient number, since it is larger than the sum of its proper divisors (94954303117).

1021243213043 is a wasteful number, since it uses less digits than its factorization.

1021243213043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937842957.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1021243213043 its reverse (3403123421201), we get a palindrome (4424366634244).

The spelling of 1021243213043 in words is "one trillion, twenty-one billion, two hundred forty-three million, two hundred thirteen thousand, forty-three".