140123242004401 has 4 divisors (see below), whose sum is σ = 142420344332404. Its totient is φ = 137826139676400.

The previous prime is 140123242004371. The next prime is 140123242004407. The reversal of 140123242004401 is 104400242321041.

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 78971233003776 + 61152009000625 = 8886576^2 + 7819975^2 .

It is a cyclic number.

It is not a de Polignac number, because 140123242004401 - 2¹⁵ = 140123241971633 is a prime.

It is a super-2 number, since 2×140123242004401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140123242004401.

It is not an unprimeable number, because it can be changed into a prime (140123242004407) 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, 1148551163910 + ... + 1148551164031.

It is an arithmetic number, because the mean of its divisors is an integer number (35605086083101).

Almost surely, 2^{140123242004401} is an apocalyptic number.

It is an amenable number.

140123242004401 is a deficient number, since it is larger than the sum of its proper divisors (2297102328003).

140123242004401 is an equidigital number, since it uses as much as digits as its factorization.

140123242004401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297102328002.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 140123242004401 its reverse (104400242321041), we get a palindrome (244523484325442).

The spelling of 140123242004401 in words is "one hundred forty trillion, one hundred twenty-three billion, two hundred forty-two million, four thousand, four hundred one".