1111315541 has 16 divisors (see below), whose sum is σ = 1352352000. Its totient is φ = 911134224.

The previous prime is 1111315519. The next prime is 1111315553. The reversal of 1111315541 is 1455131111.

It is not a de Polignac number, because 1111315541 - 2⁶ = 1111315477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111315571) 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, 62546 + ... + 78323.

It is an arithmetic number, because the mean of its divisors is an integer number (84522000).

Almost surely, 2^1111315541 is an apocalyptic number.

It is an amenable number.

1111315541 is a deficient number, since it is larger than the sum of its proper divisors (241036459).

1111315541 is an equidigital number, since it uses as much as digits as its factorization.

1111315541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140913 (or 140899 counting only the distinct ones).

The product of its digits is 300, while the sum is 23.

The square root of 1111315541 is about 33336.3996406331. The cubic root of 1111315541 is about 1035.8076858756.

Adding to 1111315541 its reverse (1455131111), we get a palindrome (2566446652).

It can be divided in two parts, 111131 and 5541, that multiplied together give a triangular number (615776871 = T₃₅₀₉₃).

The spelling of 1111315541 in words is "one billion, one hundred eleven million, three hundred fifteen thousand, five hundred forty-one".