123352455021 has 8 divisors (see below), whose sum is σ = 164473980000. Its totient is φ = 82232950032.

The previous prime is 123352455019. The next prime is 123352455041. The reversal of 123352455021 is 120554253321.

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

It is not a de Polignac number, because 123352455021 - 2¹ = 123352455019 is a prime.

It is a super-2 number, since 2×123352455021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123352455011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356250 + ... + 611243.

It is an arithmetic number, because the mean of its divisors is an integer number (20559247500).

Almost surely, 2^123352455021 is an apocalyptic number.

It is an amenable number.

123352455021 is a deficient number, since it is larger than the sum of its proper divisors (41121524979).

123352455021 is an equidigital number, since it uses as much as digits as its factorization.

123352455021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009995.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 123352455021 in words is "one hundred twenty-three billion, three hundred fifty-two million, four hundred fifty-five thousand, twenty-one".