11401430311 has 4 divisors (see below), whose sum is σ = 11476936624. Its totient is φ = 11325924000.

The previous prime is 11401430297. The next prime is 11401430389. The reversal of 11401430311 is 11303410411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11303410411 = 69203 ⋅163337.

It is a cyclic number.

It is not a de Polignac number, because 11401430311 - 2²¹ = 11399333159 is a prime.

It is a super-2 number, since 2×11401430311² (a number of 21 digits) 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 (11401430611) 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, 37752930 + ... + 37753231.

It is an arithmetic number, because the mean of its divisors is an integer number (2869234156).

Almost surely, 2^11401430311 is an apocalyptic number.

11401430311 is a deficient number, since it is larger than the sum of its proper divisors (75506313).

11401430311 is an equidigital number, since it uses as much as digits as its factorization.

11401430311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75506312.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11401430311 its reverse (11303410411), we get a palindrome (22704840722).

The spelling of 11401430311 in words is "eleven billion, four hundred one million, four hundred thirty thousand, three hundred eleven".