11286420431 has 8 divisors (see below), whose sum is σ = 13259571024. Its totient is φ = 9471121920.

The previous prime is 11286420401. The next prime is 11286420433. The reversal of 11286420431 is 13402468211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11286420431 - 2¹⁴ = 11286404047 is a prime.

It is a super-2 number, since 2×11286420431² (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 (11286420433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39462866 + ... + 39463151.

It is an arithmetic number, because the mean of its divisors is an integer number (1657446378).

Almost surely, 2^11286420431 is an apocalyptic number.

11286420431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11286420431 is a deficient number, since it is larger than the sum of its proper divisors (1973150593).

11286420431 is a wasteful number, since it uses less digits than its factorization.

11286420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78926041.

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 11286420431 its reverse (13402468211), we get a palindrome (24688888642).

The spelling of 11286420431 in words is "eleven billion, two hundred eighty-six million, four hundred twenty thousand, four hundred thirty-one".