31143224424311 has 8 divisors (see below), whose sum is σ = 31738893863040. Its totient is φ = 30549815591608.

The previous prime is 31143224424307. The next prime is 31143224424337. The reversal of 31143224424311 is 11342442234113.

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

It is a cyclic number.

It is not a de Polignac number, because 31143224424311 - 2² = 31143224424307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143224424211) 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, 565123691 + ... + 565178796.

It is an arithmetic number, because the mean of its divisors is an integer number (3967361732880).

Almost surely, 2^{31143224424311} is an apocalyptic number.

31143224424311 is a deficient number, since it is larger than the sum of its proper divisors (595669438729).

31143224424311 is a wasteful number, since it uses less digits than its factorization.

31143224424311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130303013.

The product of its digits is 55296, while the sum is 35.

Adding to 31143224424311 its reverse (11342442234113), we get a palindrome (42485666658424).

The spelling of 31143224424311 in words is "thirty-one trillion, one hundred forty-three billion, two hundred twenty-four million, four hundred twenty-four thousand, three hundred eleven".