112135021531 has 8 divisors (see below), whose sum is σ = 120763566000. Its totient is φ = 103506873312.

The previous prime is 112135021517. The next prime is 112135021543. The reversal of 112135021531 is 135120531211.

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 112135021531 - 2⁷ = 112135021403 is a prime.

It is a super-2 number, since 2×112135021531² (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 = 112135021496 and 112135021505.

It is not an unprimeable number, because it can be changed into a prime (112135021331) 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, 773220 + ... + 906718.

It is an arithmetic number, because the mean of its divisors is an integer number (15095445750).

Almost surely, 2^112135021531 is an apocalyptic number.

112135021531 is a deficient number, since it is larger than the sum of its proper divisors (8628544469).

112135021531 is a wasteful number, since it uses less digits than its factorization.

112135021531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198125.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 112135021531 its reverse (135120531211), we get a palindrome (247255552742).

The spelling of 112135021531 in words is "one hundred twelve billion, one hundred thirty-five million, twenty-one thousand, five hundred thirty-one".