1020130263543 has 16 divisors (see below), whose sum is σ = 1380904246656. Its totient is φ = 669727877280.

The previous prime is 1020130263541. The next prime is 1020130263547. The reversal of 1020130263543 is 3453620310201.

It is not a de Polignac number, because 1020130263543 - 2¹ = 1020130263541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020130263543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020130263541) 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, 140421 + ... + 1435262.

It is an arithmetic number, because the mean of its divisors is an integer number (86306515416).

Almost surely, 2^{1020130263543} is an apocalyptic number.

1020130263543 is a deficient number, since it is larger than the sum of its proper divisors (360773983113).

1020130263543 is a wasteful number, since it uses less digits than its factorization.

1020130263543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578974.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 1020130263543 its reverse (3453620310201), we get a palindrome (4473750573744).

The spelling of 1020130263543 in words is "one trillion, twenty billion, one hundred thirty million, two hundred sixty-three thousand, five hundred forty-three".