11312124321997 has 4 divisors (see below), whose sum is σ = 11312235898236. Its totient is φ = 11312012745760.

The previous prime is 11312124321941. The next prime is 11312124322021. The reversal of 11312124321997 is 79912342121311.

It is a happy number.

11312124321997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8780044576996 + 2532079745001 = 2963114^2 + 1591251^2 .

It is a cyclic number.

It is not a de Polignac number, because 11312124321997 - 2¹¹ = 11312124319949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312124322997) 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, 55635904 + ... + 55838857.

It is an arithmetic number, because the mean of its divisors is an integer number (2828058974559).

Almost surely, 2^{11312124321997} is an apocalyptic number.

It is an amenable number.

11312124321997 is a deficient number, since it is larger than the sum of its proper divisors (111576239).

11312124321997 is a wasteful number, since it uses less digits than its factorization.

11312124321997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111576238.

The product of its digits is 163296, while the sum is 46.

The spelling of 11312124321997 in words is "eleven trillion, three hundred twelve billion, one hundred twenty-four million, three hundred twenty-one thousand, nine hundred ninety-seven".