31779241311 has 8 divisors (see below), whose sum is σ = 42470181040. Its totient is φ = 21137231232.

The previous prime is 31779241267. The next prime is 31779241313. The reversal of 31779241311 is 11314297713.

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

It is not a de Polignac number, because 31779241311 - 2¹¹ = 31779239263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31779241311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31779241313) 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, 12230896 + ... + 12233493.

It is an arithmetic number, because the mean of its divisors is an integer number (5308772630).

Almost surely, 2^31779241311 is an apocalyptic number.

31779241311 is a deficient number, since it is larger than the sum of its proper divisors (10690939729).

31779241311 is a wasteful number, since it uses less digits than its factorization.

31779241311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24464825.

The product of its digits is 31752, while the sum is 39.

The spelling of 31779241311 in words is "thirty-one billion, seven hundred seventy-nine million, two hundred forty-one thousand, three hundred eleven".