101243252027 has 4 divisors (see below), whose sum is σ = 101259011256. Its totient is φ = 101227492800.

The previous prime is 101243252017. The next prime is 101243252039. The reversal of 101243252027 is 720252342101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720252342101 = 5113 ⋅140866877.

It is a cyclic number.

It is not a de Polignac number, because 101243252027 - 2¹⁶ = 101243186491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101243252017) 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, 7869974 + ... + 7882827.

It is an arithmetic number, because the mean of its divisors is an integer number (25314752814).

Almost surely, 2^101243252027 is an apocalyptic number.

101243252027 is a deficient number, since it is larger than the sum of its proper divisors (15759229).

101243252027 is an equidigital number, since it uses as much as digits as its factorization.

101243252027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15759228.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 101243252027 its reverse (720252342101), we get a palindrome (821495594128).

The spelling of 101243252027 in words is "one hundred one billion, two hundred forty-three million, two hundred fifty-two thousand, twenty-seven".