126431134621 has 8 divisors (see below), whose sum is σ = 138166430688. Its totient is φ = 114736098000.

The previous prime is 126431134601. The next prime is 126431134663.

126431134621 is nontrivially palindromic in base 10.

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 126431134621 - 2¹¹ = 126431132573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126431134601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10058290 + ... + 10070851.

It is an arithmetic number, because the mean of its divisors is an integer number (17270803836).

Almost surely, 2^126431134621 is an apocalyptic number.

126431134621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126431134621 is a deficient number, since it is larger than the sum of its proper divisors (11735296067).

126431134621 is a wasteful number, since it uses less digits than its factorization.

126431134621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20129723.

The product of its digits is 20736, while the sum is 34.

The spelling of 126431134621 in words is "one hundred twenty-six billion, four hundred thirty-one million, one hundred thirty-four thousand, six hundred twenty-one".