2123562213057 has 4 divisors (see below), whose sum is σ = 2831416284080. Its totient is φ = 1415708142036.

The previous prime is 2123562213029. The next prime is 2123562213077. The reversal of 2123562213057 is 7503122653212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2123562213057 - 2⁷ = 2123562212929 is a prime.

It is a super-2 number, since 2×2123562213057² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123562213007) 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, 353927035507 + ... + 353927035512.

It is an arithmetic number, because the mean of its divisors is an integer number (707854071020).

Almost surely, 2^{2123562213057} is an apocalyptic number.

It is an amenable number.

2123562213057 is a deficient number, since it is larger than the sum of its proper divisors (707854071023).

2123562213057 is an equidigital number, since it uses as much as digits as its factorization.

2123562213057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707854071022.

The product of its (nonzero) digits is 151200, while the sum is 39.

Adding to 2123562213057 its reverse (7503122653212), we get a palindrome (9626684866269).

The spelling of 2123562213057 in words is "two trillion, one hundred twenty-three billion, five hundred sixty-two million, two hundred thirteen thousand, fifty-seven".