123534221151 has 8 divisors (see below), whose sum is σ = 179686139904. Its totient is φ = 74869224920.

The previous prime is 123534221137. The next prime is 123534221207. The reversal of 123534221151 is 151122435321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123534221151 - 2¹¹ = 123534219103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123534229151) 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 7 ways as a sum of consecutive naturals, for example, 1871730591 + ... + 1871730656.

It is an arithmetic number, because the mean of its divisors is an integer number (22460767488).

Almost surely, 2^123534221151 is an apocalyptic number.

123534221151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123534221151 is a deficient number, since it is larger than the sum of its proper divisors (56151918753).

123534221151 is a wasteful number, since it uses less digits than its factorization.

123534221151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743461261.

The product of its digits is 7200, while the sum is 30.

Adding to 123534221151 its reverse (151122435321), we get a palindrome (274656656472).

The spelling of 123534221151 in words is "one hundred twenty-three billion, five hundred thirty-four million, two hundred twenty-one thousand, one hundred fifty-one".