101042636231 has 4 divisors (see below), whose sum is σ = 105435794352. Its totient is φ = 96649478112.

The previous prime is 101042636209. The next prime is 101042636237. The reversal of 101042636231 is 132636240101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132636240101 = 373 ⋅355593137.

It is a cyclic number.

It is not a de Polignac number, because 101042636231 - 2¹⁸ = 101042374087 is a prime.

It is a super-2 number, since 2×101042636231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101042636194 and 101042636203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101042636237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196579026 + ... + 2196579071.

It is an arithmetic number, because the mean of its divisors is an integer number (26358948588).

Almost surely, 2^101042636231 is an apocalyptic number.

101042636231 is a deficient number, since it is larger than the sum of its proper divisors (4393158121).

101042636231 is an equidigital number, since it uses as much as digits as its factorization.

101042636231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393158120.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 101042636231 its reverse (132636240101), we get a palindrome (233678876332).

The spelling of 101042636231 in words is "one hundred one billion, forty-two million, six hundred thirty-six thousand, two hundred thirty-one".