1011111343 has 4 divisors (see below), whose sum is σ = 1103030568. Its totient is φ = 919192120.

The previous prime is 1011111319. The next prime is 1011111377. The reversal of 1011111343 is 3431111101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3431111101 = 11 ⋅311919191.

It is not a de Polignac number, because 1011111343 - 2²¹ = 1009014191 is a prime.

It is a super-2 number, since 2×1011111343² = 2044692295886527298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011111313) 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, 45959596 + ... + 45959617.

It is an arithmetic number, because the mean of its divisors is an integer number (275757642).

Almost surely, 2^1011111343 is an apocalyptic number.

1011111343 is a deficient number, since it is larger than the sum of its proper divisors (91919225).

1011111343 is an equidigital number, since it uses as much as digits as its factorization.

1011111343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91919224.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1011111343 is about 31797.9770268487. The cubic root of 1011111343 is about 1003.6901470648.

Adding to 1011111343 its reverse (3431111101), we get a palindrome (4442222444).

The spelling of 1011111343 in words is "one billion, eleven million, one hundred eleven thousand, three hundred forty-three".