124040525101 has 4 divisors (see below), whose sum is σ = 127065903804. Its totient is φ = 121015146400.

The previous prime is 124040525087. The next prime is 124040525113. The reversal of 124040525101 is 101525040421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18577962601 + 105462562500 = 136301^2 + 324750^2 .

It is a cyclic number.

It is not a de Polignac number, because 124040525101 - 2²⁵ = 124006970669 is a prime.

It is a super-2 number, since 2×124040525101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124040525131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512689290 + ... + 1512689371.

It is an arithmetic number, because the mean of its divisors is an integer number (31766475951).

Almost surely, 2^124040525101 is an apocalyptic number.

It is an amenable number.

124040525101 is a deficient number, since it is larger than the sum of its proper divisors (3025378703).

124040525101 is an equidigital number, since it uses as much as digits as its factorization.

124040525101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025378702.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 124040525101 its reverse (101525040421), we get a palindrome (225565565522).

The spelling of 124040525101 in words is "one hundred twenty-four billion, forty million, five hundred twenty-five thousand, one hundred one".