1020420243041 has 8 divisors (see below), whose sum is σ = 1023944828904. Its totient is φ = 1016901658240.

The previous prime is 1020420243013. The next prime is 1020420243067. The reversal of 1020420243041 is 1403420240201.

It can be written as a sum of positive squares in 4 ways, for example, as 98897041441 + 921523201600 = 314479^2 + 959960^2 .

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 1020420243041 - 2⁶ = 1020420242977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020420242998 and 1020420243016.

It is not an unprimeable number, because it can be changed into a prime (1020420243091) 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, 1159466 + ... + 1839891.

It is an arithmetic number, because the mean of its divisors is an integer number (127993103613).

Almost surely, 2^{1020420243041} is an apocalyptic number.

It is an amenable number.

1020420243041 is a deficient number, since it is larger than the sum of its proper divisors (3524585863).

1020420243041 is an equidigital number, since it uses as much as digits as its factorization.

1020420243041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000531.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1020420243041 its reverse (1403420240201), we get a palindrome (2423840483242).

The spelling of 1020420243041 in words is "one trillion, twenty billion, four hundred twenty million, two hundred forty-three thousand, forty-one".