124040031511245 has 128 divisors (see below), whose sum is σ = 217238895820800. Its totient is φ = 60241533800448.

The previous prime is 124040031511213. The next prime is 124040031511271. The reversal of 124040031511245 is 542115130040421.

It is not a de Polignac number, because 124040031511245 - 2⁵ = 124040031511213 is a prime.

It is a super-2 number, since 2×124040031511245² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 587157877 + ... + 587369093.

It is an arithmetic number, because the mean of its divisors is an integer number (1697178873600).

Almost surely, 2^{124040031511245} is an apocalyptic number.

124040031511245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124040031511245 is a deficient number, since it is larger than the sum of its proper divisors (93198864309555).

124040031511245 is a wasteful number, since it uses less digits than its factorization.

124040031511245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212099.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 124040031511245 its reverse (542115130040421), we get a palindrome (666155161551666).

The spelling of 124040031511245 in words is "one hundred twenty-four trillion, forty billion, thirty-one million, five hundred eleven thousand, two hundred forty-five".