31142013311 has 8 divisors (see below), whose sum is σ = 31301919264. Its totient is φ = 30982422240.

The previous prime is 31142013307. The next prime is 31142013359. The reversal of 31142013311 is 11331024113.

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 31142013311 - 2² = 31142013307 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 (31142013211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120881 + ... + 277301.

It is an arithmetic number, because the mean of its divisors is an integer number (3912739908).

Almost surely, 2^31142013311 is an apocalyptic number.

31142013311 is a deficient number, since it is larger than the sum of its proper divisors (159905953).

31142013311 is a wasteful number, since it uses less digits than its factorization.

31142013311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157441.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31142013311 its reverse (11331024113), we get a palindrome (42473037424).

The spelling of 31142013311 in words is "thirty-one billion, one hundred forty-two million, thirteen thousand, three hundred eleven".