126063721353 has 4 divisors (see below), whose sum is σ = 168084961808. Its totient is φ = 84042480900.

The previous prime is 126063721327. The next prime is 126063721379. The reversal of 126063721353 is 353127360621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (126063721327) and next prime (126063721379).

It is not a de Polignac number, because 126063721353 - 2²⁵ = 126030166921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126063721453) 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, 21010620223 + ... + 21010620228.

It is an arithmetic number, because the mean of its divisors is an integer number (42021240452).

Almost surely, 2^126063721353 is an apocalyptic number.

It is an amenable number.

126063721353 is a deficient number, since it is larger than the sum of its proper divisors (42021240455).

126063721353 is an equidigital number, since it uses as much as digits as its factorization.

126063721353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42021240454.

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 126063721353 in words is "one hundred twenty-six billion, sixty-three million, seven hundred twenty-one thousand, three hundred fifty-three".