1020242541205 has 8 divisors (see below), whose sum is σ = 1242564050592. Its totient is φ = 804012032208.

The previous prime is 1020242541191. The next prime is 1020242541229. The reversal of 1020242541205 is 5021452420201.

It is a happy number.

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 1020242541205 - 2²¹ = 1020240444053 is a prime.

It is a super-2 number, since 2×1020242541205² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1522749727 + ... + 1522750396.

It is an arithmetic number, because the mean of its divisors is an integer number (155320506324).

Almost surely, 2^{1020242541205} is an apocalyptic number.

It is an amenable number.

1020242541205 is a deficient number, since it is larger than the sum of its proper divisors (222321509387).

1020242541205 is an equidigital number, since it uses as much as digits as its factorization.

1020242541205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045500195.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 1020242541205 its reverse (5021452420201), we get a palindrome (6041694961406).

The spelling of 1020242541205 in words is "one trillion, twenty billion, two hundred forty-two million, five hundred forty-one thousand, two hundred five".