112121203013 has 4 divisors (see below), whose sum is σ = 112122159948. Its totient is φ = 112120246080.

The previous prime is 112121203009. The next prime is 112121203037. The reversal of 112121203013 is 310302121211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 310302121211 = 563 ⋅551158297.

It can be written as a sum of positive squares in 2 ways, for example, as 91495360324 + 20625842689 = 302482^2 + 143617^2 .

It is a cyclic number.

It is not a de Polignac number, because 112121203013 - 2² = 112121203009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121202982 and 112121203000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121293013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273428 + ... + 546813.

It is an arithmetic number, because the mean of its divisors is an integer number (28030539987).

Almost surely, 2^112121203013 is an apocalyptic number.

It is an amenable number.

112121203013 is a deficient number, since it is larger than the sum of its proper divisors (956935).

112121203013 is an equidigital number, since it uses as much as digits as its factorization.

112121203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956934.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 112121203013 its reverse (310302121211), we get a palindrome (422423324224).

The spelling of 112121203013 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred three thousand, thirteen".