126040823105 has 16 divisors (see below), whose sum is σ = 162536232960. Its totient is φ = 93484883712.

The previous prime is 126040823063. The next prime is 126040823137. The reversal of 126040823105 is 501328040621.

It is a cyclic number.

It is not a de Polignac number, because 126040823105 - 2²⁰ = 126039774529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11060225 + ... + 11071614.

It is an arithmetic number, because the mean of its divisors is an integer number (10158514560).

Almost surely, 2^126040823105 is an apocalyptic number.

It is an amenable number.

126040823105 is a deficient number, since it is larger than the sum of its proper divisors (36495409855).

126040823105 is a wasteful number, since it uses less digits than its factorization.

126040823105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22131928.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 126040823105 its reverse (501328040621), we get a palindrome (627368863726).

The spelling of 126040823105 in words is "one hundred twenty-six billion, forty million, eight hundred twenty-three thousand, one hundred five".