11420034011243 has 12 divisors (see below), whose sum is σ = 13490260727688. Its totient is φ = 9583245322560.

The previous prime is 11420034011219. The next prime is 11420034011297. The reversal of 11420034011243 is 34211043002411.

It is not a de Polignac number, because 11420034011243 - 2¹⁰ = 11420034010219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11420034011203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3071551130 + ... + 3071554847.

It is an arithmetic number, because the mean of its divisors is an integer number (1124188393974).

Almost surely, 2^{11420034011243} is an apocalyptic number.

11420034011243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11420034011243 is a deficient number, since it is larger than the sum of its proper divisors (2070226716445).

11420034011243 is a wasteful number, since it uses less digits than its factorization.

11420034011243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143106014 (or 6143106001 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11420034011243 its reverse (34211043002411), we get a palindrome (45631077013654).

The spelling of 11420034011243 in words is "eleven trillion, four hundred twenty billion, thirty-four million, eleven thousand, two hundred forty-three".