123213011321211 has 16 divisors (see below), whose sum is σ = 187753964057088. Its totient is φ = 70407133560000.

The previous prime is 123213011321177. The next prime is 123213011321287. The reversal of 123213011321211 is 112123110312321.

It is not a de Polignac number, because 123213011321211 - 2⁹ = 123213011320699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123213011321111) 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 15 ways as a sum of consecutive naturals, for example, 7493050 + ... + 17394591.

It is an arithmetic number, because the mean of its divisors is an integer number (11734622753568).

Almost surely, 2^{123213011321211} is an apocalyptic number.

123213011321211 is a deficient number, since it is larger than the sum of its proper divisors (64540952735877).

123213011321211 is a wasteful number, since it uses less digits than its factorization.

123213011321211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25123402.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 123213011321211 its reverse (112123110312321), we get a palindrome (235336121633532).

The spelling of 123213011321211 in words is "one hundred twenty-three trillion, two hundred thirteen billion, eleven million, three hundred twenty-one thousand, two hundred eleven".