126056121401 has 32 divisors (see below), whose sum is σ = 149068136448. Its totient is φ = 104357937600.

The previous prime is 126056121397. The next prime is 126056121421. The reversal of 126056121401 is 104121650621.

It is not a de Polignac number, because 126056121401 - 2² = 126056121397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126056121421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10129355 + ... + 10141791.

It is an arithmetic number, because the mean of its divisors is an integer number (4658379264).

Almost surely, 2^126056121401 is an apocalyptic number.

It is an amenable number.

126056121401 is a deficient number, since it is larger than the sum of its proper divisors (23012015047).

126056121401 is a wasteful number, since it uses less digits than its factorization.

126056121401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12861.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 126056121401 in words is "one hundred twenty-six billion, fifty-six million, one hundred twenty-one thousand, four hundred one".