1011132543 has 4 divisors (see below), whose sum is σ = 1348176728. Its totient is φ = 674088360.

The previous prime is 1011132541. The next prime is 1011132583. The reversal of 1011132543 is 3452311101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3452311101 = 3 ⋅1150770367.

It is not a de Polignac number, because 1011132543 - 2¹ = 1011132541 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 (1011132541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168522088 + ... + 168522093.

It is an arithmetic number, because the mean of its divisors is an integer number (337044182).

Almost surely, 2^1011132543 is an apocalyptic number.

1011132543 is a deficient number, since it is larger than the sum of its proper divisors (337044185).

1011132543 is an equidigital number, since it uses as much as digits as its factorization.

1011132543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337044184.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1011132543 is about 31798.3103796412. The cubic root of 1011132543 is about 1003.6971618157.

Adding to 1011132543 its reverse (3452311101), we get a palindrome (4463443644).

The spelling of 1011132543 in words is "one billion, eleven million, one hundred thirty-two thousand, five hundred forty-three".