1543142201111 has 32 divisors (see below), whose sum is σ = 1869436551168. Its totient is φ = 1245984405120.

The previous prime is 1543142201093. The next prime is 1543142201123. The reversal of 1543142201111 is 1111022413451.

It is not a de Polignac number, because 1543142201111 - 2⁶ = 1543142201047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543142201311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 932381 + ... + 1988873.

It is an arithmetic number, because the mean of its divisors is an integer number (58419892224).

Almost surely, 2^{1543142201111} is an apocalyptic number.

1543142201111 is a deficient number, since it is larger than the sum of its proper divisors (326294350057).

1543142201111 is a wasteful number, since it uses less digits than its factorization.

1543142201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056711.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 1543142201111 its reverse (1111022413451), we get a palindrome (2654164614562).

The spelling of 1543142201111 in words is "one trillion, five hundred forty-three billion, one hundred forty-two million, two hundred one thousand, one hundred eleven".