2213506542123 has 6 divisors (see below), whose sum is σ = 3197287227524. Its totient is φ = 1475671028076.

The previous prime is 2213506542101. The next prime is 2213506542139. The reversal of 2213506542123 is 3212456053122.

2213506542123 is a `hidden beast` number, since 2 + 21 + 3 + 506 + 5 + 4 + 2 + 123 = 666.

It is not a de Polignac number, because 2213506542123 - 2⁶ = 2213506542059 is a prime.

It is a super-2 number, since 2×2213506542123² (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 (2213506542523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122972585665 + ... + 122972585682.

Almost surely, 2^{2213506542123} is an apocalyptic number.

2213506542123 is a deficient number, since it is larger than the sum of its proper divisors (983780685401).

2213506542123 is a wasteful number, since it uses less digits than its factorization.

2213506542123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245945171353 (or 245945171350 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 2213506542123 in words is "two trillion, two hundred thirteen billion, five hundred six million, five hundred forty-two thousand, one hundred twenty-three".