120126030121005 has 16 divisors (see below), whose sum is σ = 192205039294464. Its totient is φ = 64066085697600.

The previous prime is 120126030121001. The next prime is 120126030121049. The reversal of 120126030121005 is 500121030621021.

It is a happy number.

It is not a de Polignac number, because 120126030121005 - 2² = 120126030121001 is a prime.

It is a super-2 number, since 2×120126030121005² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120126030121001) 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 15 ways as a sum of consecutive naturals, for example, 69769069 + ... + 71470098.

It is an arithmetic number, because the mean of its divisors is an integer number (12012814955904).

Almost surely, 2^{120126030121005} is an apocalyptic number.

120126030121005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120126030121005 is a deficient number, since it is larger than the sum of its proper divisors (72079009173459).

120126030121005 is a wasteful number, since it uses less digits than its factorization.

120126030121005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141295876.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 120126030121005 its reverse (500121030621021), we get a palindrome (620247060742026).

The spelling of 120126030121005 in words is "one hundred twenty trillion, one hundred twenty-six billion, thirty million, one hundred twenty-one thousand, five".