124121142111145 has 8 divisors (see below), whose sum is σ = 148945964418504. Its totient is φ = 99296517765504.

The previous prime is 124121142111119. The next prime is 124121142111191. The reversal of 124121142111145 is 541111241121421.

It can be written as a sum of positive squares in 4 ways, for example, as 15347527078464 + 108773615032681 = 3917592^2 + 10429459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124121142111145 - 2¹³ = 124121142102953 is a prime.

It is a super-2 number, since 2×124121142111145² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48107524 + ... + 50621893.

It is an arithmetic number, because the mean of its divisors is an integer number (18618245552313).

Almost surely, 2^{124121142111145} is an apocalyptic number.

It is an amenable number.

124121142111145 is a deficient number, since it is larger than the sum of its proper divisors (24824822307359).

124121142111145 is an equidigital number, since it uses as much as digits as its factorization.

124121142111145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98980859.

The product of its digits is 2560, while the sum is 31.

Adding to 124121142111145 its reverse (541111241121421), we get a palindrome (665232383232566).

The spelling of 124121142111145 in words is "one hundred twenty-four trillion, one hundred twenty-one billion, one hundred forty-two million, one hundred eleven thousand, one hundred forty-five".