31423142111 has 8 divisors (see below), whose sum is σ = 32029564560. Its totient is φ = 30819180672.

The previous prime is 31423142089. The next prime is 31423142197. The reversal of 31423142111 is 11124132413.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31423142111 is a prime.

It is a super-3 number, since 3×31423142111³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423147111) 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, 589460 + ... + 640553.

It is an arithmetic number, because the mean of its divisors is an integer number (4003695570).

Almost surely, 2^31423142111 is an apocalyptic number.

31423142111 is a deficient number, since it is larger than the sum of its proper divisors (606422449).

31423142111 is a wasteful number, since it uses less digits than its factorization.

31423142111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230505.

The product of its digits is 576, while the sum is 23.

Adding to 31423142111 its reverse (11124132413), we get a palindrome (42547274524).

The spelling of 31423142111 in words is "thirty-one billion, four hundred twenty-three million, one hundred forty-two thousand, one hundred eleven".