2123356446507 has 4 divisors (see below), whose sum is σ = 2831141928680. Its totient is φ = 1415570964336.

The previous prime is 2123356446413. The next prime is 2123356446509. The reversal of 2123356446507 is 7056446533212.

It is a happy number.

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

It is not a de Polignac number, because 2123356446507 - 2¹² = 2123356442411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123356446509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353892741082 + ... + 353892741087.

It is an arithmetic number, because the mean of its divisors is an integer number (707785482170).

Almost surely, 2^{2123356446507} is an apocalyptic number.

2123356446507 is a deficient number, since it is larger than the sum of its proper divisors (707785482173).

2123356446507 is an equidigital number, since it uses as much as digits as its factorization.

2123356446507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707785482172.

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 2123356446507 in words is "two trillion, one hundred twenty-three billion, three hundred fifty-six million, four hundred forty-six thousand, five hundred seven".