220126034135123 has 4 divisors (see below), whose sum is σ = 221095752347400. Its totient is φ = 219156315922848.

The previous prime is 220126034135087. The next prime is 220126034135129. The reversal of 220126034135123 is 321531430621022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220126034135123 - 2⁴⁶ = 149757289957459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220126034135129) 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, 484859105798 + ... + 484859106251.

It is an arithmetic number, because the mean of its divisors is an integer number (55273938086850).

Almost surely, 2^{220126034135123} is an apocalyptic number.

220126034135123 is a deficient number, since it is larger than the sum of its proper divisors (969718212277).

220126034135123 is an equidigital number, since it uses as much as digits as its factorization.

220126034135123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969718212276.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 220126034135123 its reverse (321531430621022), we get a palindrome (541657464756145).

The spelling of 220126034135123 in words is "two hundred twenty trillion, one hundred twenty-six billion, thirty-four million, one hundred thirty-five thousand, one hundred twenty-three".