1030520020543 has 8 divisors (see below), whose sum is σ = 1126354833968. Its totient is φ = 937051498944.

The previous prime is 1030520020513. The next prime is 1030520020553. The reversal of 1030520020543 is 3450200250301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030520020543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030520020513) 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, 591572046 + ... + 591573787.

It is an arithmetic number, because the mean of its divisors is an integer number (140794354246).

Almost surely, 2^{1030520020543} is an apocalyptic number.

1030520020543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1030520020543 is a deficient number, since it is larger than the sum of its proper divisors (95834813425).

1030520020543 is a wasteful number, since it uses less digits than its factorization.

1030520020543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183145913.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 1030520020543 its reverse (3450200250301), we get a palindrome (4480720270844).

The spelling of 1030520020543 in words is "one trillion, thirty billion, five hundred twenty million, twenty thousand, five hundred forty-three".