2113123032001 has 4 divisors (see below), whose sum is σ = 2121891177604. Its totient is φ = 2104354886400.

The previous prime is 2113123031953. The next prime is 2113123032023. The reversal of 2113123032001 is 1002303213112.

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 1831485848976 + 281637183025 = 1353324^2 + 530695^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113123032001 - 2⁹ = 2113123031489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113123032001.

It is not an unprimeable number, because it can be changed into a prime (2113123032071) 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, 4384072440 + ... + 4384072921.

It is an arithmetic number, because the mean of its divisors is an integer number (530472794401).

Almost surely, 2^{2113123032001} is an apocalyptic number.

It is an amenable number.

2113123032001 is a deficient number, since it is larger than the sum of its proper divisors (8768145603).

2113123032001 is an equidigital number, since it uses as much as digits as its factorization.

2113123032001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768145602.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2113123032001 its reverse (1002303213112), we get a palindrome (3115426245113).

The spelling of 2113123032001 in words is "two trillion, one hundred thirteen billion, one hundred twenty-three million, thirty-two thousand, one".