126231101 has 16 divisors (see below), whose sum is σ = 134204928. Its totient is φ = 118540800.

The previous prime is 126231097. The next prime is 126231109. The reversal of 126231101 is 101132621.

It is a cyclic number.

It is not a de Polignac number, because 126231101 - 2² = 126231097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126231101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126231109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374405 + ... + 374741.

It is an arithmetic number, because the mean of its divisors is an integer number (8387808).

Almost surely, 2^126231101 is an apocalyptic number.

It is an amenable number.

126231101 is a deficient number, since it is larger than the sum of its proper divisors (7973827).

126231101 is a wasteful number, since it uses less digits than its factorization.

126231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 126231101 is about 11235.2615011846. The cubic root of 126231101 is about 501.6361084587.

Adding to 126231101 its reverse (101132621), we get a palindrome (227363722).

The spelling of 126231101 in words is "one hundred twenty-six million, two hundred thirty-one thousand, one hundred one".