112111212531 has 8 divisors (see below), whose sum is σ = 150658637824. Its totient is φ = 74152297800.

The previous prime is 112111212529. The next prime is 112111212533. The reversal of 112111212531 is 135212111211.

It is an interprime number because it is at equal distance from previous prime (112111212529) and next prime (112111212533).

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

It is not a de Polignac number, because 112111212531 - 2¹ = 112111212529 is a prime.

It is a super-2 number, since 2×112111212531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112111212498 and 112111212507.

It is not an unprimeable number, because it can be changed into a prime (112111212533) 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, 147127195 + ... + 147127956.

It is an arithmetic number, because the mean of its divisors is an integer number (18832329728).

Almost surely, 2^112111212531 is an apocalyptic number.

112111212531 is a deficient number, since it is larger than the sum of its proper divisors (38547425293).

112111212531 is a wasteful number, since it uses less digits than its factorization.

112111212531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294255281.

The product of its digits is 120, while the sum is 21.

Adding to 112111212531 its reverse (135212111211), we get a palindrome (247323323742).

The spelling of 112111212531 in words is "one hundred twelve billion, one hundred eleven million, two hundred twelve thousand, five hundred thirty-one".