11431279311 has 8 divisors (see below), whose sum is σ = 15255654960. Its totient is φ = 7613878272.

The previous prime is 11431279273. The next prime is 11431279319. The reversal of 11431279311 is 11397213411.

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

It is not a de Polignac number, because 11431279311 - 2¹³ = 11431271119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11431279319) 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, 1739826 + ... + 1746383.

It is an arithmetic number, because the mean of its divisors is an integer number (1906956870).

Almost surely, 2^11431279311 is an apocalyptic number.

11431279311 is a deficient number, since it is larger than the sum of its proper divisors (3824375649).

11431279311 is a wasteful number, since it uses less digits than its factorization.

11431279311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487305.

The product of its digits is 4536, while the sum is 33.

The spelling of 11431279311 in words is "eleven billion, four hundred thirty-one million, two hundred seventy-nine thousand, three hundred eleven".