126244520013530 has 16 divisors (see below), whose sum is σ = 240607202849640. Its totient is φ = 47527348710912.

The previous prime is 126244520013527. The next prime is 126244520013533. The reversal of 126244520013530 is 35310025442621.

It is an interprime number because it is at equal distance from previous prime (126244520013527) and next prime (126244520013533).

It can be written as a sum of positive squares in 4 ways, for example, as 126030642437569 + 213877575961 = 11226337^2 + 462469^2 .

It is a super-2 number, since 2×126244520013530² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126244520013533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371307411635 + ... + 371307411974.

Almost surely, 2^{126244520013530} is an apocalyptic number.

126244520013530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126244520013530 is a deficient number, since it is larger than the sum of its proper divisors (114362682836110).

126244520013530 is a wasteful number, since it uses less digits than its factorization.

126244520013530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742614823633.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 126244520013530 in words is "one hundred twenty-six trillion, two hundred forty-four billion, five hundred twenty million, thirteen thousand, five hundred thirty".