1021241043001 has 16 divisors (see below), whose sum is σ = 1078000100800. Its totient is φ = 964786655808.

The previous prime is 1021241042951. The next prime is 1021241043007. The reversal of 1021241043001 is 1003401421201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021241043001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021241043001.

It is not an unprimeable number, because it can be changed into a prime (1021241043007) 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, 9981235 + ... + 10083031.

It is an arithmetic number, because the mean of its divisors is an integer number (67375006300).

Almost surely, 2^{1021241043001} is an apocalyptic number.

It is an amenable number.

1021241043001 is a deficient number, since it is larger than the sum of its proper divisors (56759057799).

1021241043001 is a wasteful number, since it uses less digits than its factorization.

1021241043001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103288.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1021241043001 its reverse (1003401421201), we get a palindrome (2024642464202).

The spelling of 1021241043001 in words is "one trillion, twenty-one billion, two hundred forty-one million, forty-three thousand, one".