11431136375247 has 32 divisors (see below), whose sum is σ = 15444030551040. Its totient is φ = 7520374800000.

The previous prime is 11431136375221. The next prime is 11431136375249. The reversal of 11431136375247 is 74257363113411.

It is a happy number.

11431136375247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11431136375247 - 2¹⁶ = 11431136309711 is a prime.

It is a super-2 number, since 2×11431136375247² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11431136375196 and 11431136375205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11431136375249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36506922 + ... + 36818712.

It is an arithmetic number, because the mean of its divisors is an integer number (482625954720).

Almost surely, 2^{11431136375247} is an apocalyptic number.

11431136375247 is a deficient number, since it is larger than the sum of its proper divisors (4012894175793).

11431136375247 is a wasteful number, since it uses less digits than its factorization.

11431136375247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312495.

The product of its digits is 1270080, while the sum is 48.

Adding to 11431136375247 its reverse (74257363113411), we get a palindrome (85688499488658).

The spelling of 11431136375247 in words is "eleven trillion, four hundred thirty-one billion, one hundred thirty-six million, three hundred seventy-five thousand, two hundred forty-seven".