123421200544210 has 8 divisors (see below), whose sum is σ = 222158160979596. Its totient is φ = 49368480217680.

The previous prime is 123421200544207. The next prime is 123421200544211. The reversal of 123421200544210 is 12445002124321.

It can be written as a sum of positive squares in 2 ways, for example, as 123368181337129 + 53019207081 = 11107123^2 + 230259^2 .

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

It is not an unprimeable number, because it can be changed into a prime (123421200544211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6171060027201 + ... + 6171060027220.

Almost surely, 2^{123421200544210} is an apocalyptic number.

123421200544210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123421200544210 is a deficient number, since it is larger than the sum of its proper divisors (98736960435386).

123421200544210 is a wasteful number, since it uses less digits than its factorization.

123421200544210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12342120054428.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 123421200544210 its reverse (12445002124321), we get a palindrome (135866202668531).

The spelling of 123421200544210 in words is "one hundred twenty-three trillion, four hundred twenty-one billion, two hundred million, five hundred forty-four thousand, two hundred ten".