111204143031 has 8 divisors (see below), whose sum is σ = 148273740160. Its totient is φ = 74135320632.

The previous prime is 111204142999. The next prime is 111204143033. The reversal of 111204143031 is 130341402111.

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

It is not a de Polignac number, because 111204143031 - 2⁵ = 111204142999 is a prime.

It is a super-3 number, since 3×111204143031³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111204142989 and 111204143007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111204143033) 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, 410430 + ... + 625188.

It is an arithmetic number, because the mean of its divisors is an integer number (18534217520).

Almost surely, 2^111204143031 is an apocalyptic number.

111204143031 is a deficient number, since it is larger than the sum of its proper divisors (37069597129).

111204143031 is a wasteful number, since it uses less digits than its factorization.

111204143031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387365.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111204143031 its reverse (130341402111), we get a palindrome (241545545142).

The spelling of 111204143031 in words is "one hundred eleven billion, two hundred four million, one hundred forty-three thousand, thirty-one".