123213001443 has 16 divisors (see below), whose sum is σ = 187785818880. Its totient is φ = 70395176736.

The previous prime is 123213001441. The next prime is 123213001493. The reversal of 123213001443 is 344100312321.

It is a happy number.

It is not a de Polignac number, because 123213001443 - 2¹ = 123213001441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123213001441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386280 + ... + 628997.

It is an arithmetic number, because the mean of its divisors is an integer number (11736613680).

Almost surely, 2^123213001443 is an apocalyptic number.

123213001443 is a deficient number, since it is larger than the sum of its proper divisors (64572817437).

123213001443 is a wasteful number, since it uses less digits than its factorization.

123213001443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021066.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123213001443 its reverse (344100312321), we get a palindrome (467313313764).

The spelling of 123213001443 in words is "one hundred twenty-three billion, two hundred thirteen million, one thousand, four hundred forty-three".