1111816534 has 4 divisors (see below), whose sum is σ = 1667724804. Its totient is φ = 555908266.

The previous prime is 1111816487. The next prime is 1111816553. The reversal of 1111816534 is 4356181111.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1111816534² = 2472272010551546312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111816496 and 1111816505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277954132 + ... + 277954135.

It is an arithmetic number, because the mean of its divisors is an integer number (416931201).

Almost surely, 2^1111816534 is an apocalyptic number.

1111816534 is a deficient number, since it is larger than the sum of its proper divisors (555908270).

1111816534 is an equidigital number, since it uses as much as digits as its factorization.

1111816534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555908269.

The product of its digits is 2880, while the sum is 31.

The square root of 1111816534 is about 33343.9129977272. The cubic root of 1111816534 is about 1035.9633135740.

Adding to 1111816534 its reverse (4356181111), we get a palindrome (5467997645).

The spelling of 1111816534 in words is "one billion, one hundred eleven million, eight hundred sixteen thousand, five hundred thirty-four".