140421011827 has 4 divisors (see below), whose sum is σ = 140476059856. Its totient is φ = 140365963800.

The previous prime is 140421011813. The next prime is 140421011833. The reversal of 140421011827 is 728110124041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 728110124041 = 127 ⋅5733150583.

It is a cyclic number.

It is not a de Polignac number, because 140421011827 - 2¹⁵ = 140420979059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140421011837) 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, 27520188 + ... + 27525289.

It is an arithmetic number, because the mean of its divisors is an integer number (35119014964).

Almost surely, 2^140421011827 is an apocalyptic number.

140421011827 is a deficient number, since it is larger than the sum of its proper divisors (55048029).

140421011827 is an equidigital number, since it uses as much as digits as its factorization.

140421011827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55048028.

The product of its (nonzero) digits is 3584, while the sum is 31.

Adding to 140421011827 its reverse (728110124041), we get a palindrome (868531135868).

The spelling of 140421011827 in words is "one hundred forty billion, four hundred twenty-one million, eleven thousand, eight hundred twenty-seven".