126243133357 has 16 divisors (see below), whose sum is σ = 140050324800. Its totient is φ = 112831107840.

The previous prime is 126243133327. The next prime is 126243133361. The reversal of 126243133357 is 753331342621.

It is not a de Polignac number, because 126243133357 - 2¹¹ = 126243131309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126243133327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206869 + ... + 543397.

It is an arithmetic number, because the mean of its divisors is an integer number (8753145300).

Almost surely, 2^126243133357 is an apocalyptic number.

It is an amenable number.

126243133357 is a deficient number, since it is larger than the sum of its proper divisors (13807191443).

126243133357 is a wasteful number, since it uses less digits than its factorization.

126243133357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337116.

The product of its digits is 272160, while the sum is 40.

Adding to 126243133357 its reverse (753331342621), we get a palindrome (879574475978).

The spelling of 126243133357 in words is "one hundred twenty-six billion, two hundred forty-three million, one hundred thirty-three thousand, three hundred fifty-seven".