1534021230543 has 16 divisors (see below), whose sum is σ = 2134633643520. Its totient is φ = 978059120544.

The previous prime is 1534021230527. The next prime is 1534021230563. The reversal of 1534021230543 is 3450321204351.

It is not a de Polignac number, because 1534021230543 - 2⁴ = 1534021230527 is a prime.

It is a super-2 number, since 2×1534021230543² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534021230523) 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, 1354771 + ... + 2214372.

It is an arithmetic number, because the mean of its divisors is an integer number (133414602720).

Almost surely, 2^{1534021230543} is an apocalyptic number.

1534021230543 is a deficient number, since it is larger than the sum of its proper divisors (600612412977).

1534021230543 is a wasteful number, since it uses less digits than its factorization.

1534021230543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575398.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 1534021230543 its reverse (3450321204351), we get a palindrome (4984342434894).

The spelling of 1534021230543 in words is "one trillion, five hundred thirty-four billion, twenty-one million, two hundred thirty thousand, five hundred forty-three".